drop down menu – Select Country Dropdown in html page

drop down menu – Select Country Dropdown in html page

Here it is

<select>
    <option value=Afghanistan>Afghanistan</option>
<option value=Albania>Albania</option>
<option value=Algeria>Algeria</option>
<option value=American Samoa>American Samoa</option>
<option value=Andorra>Andorra</option>
<option value=Angola>Angola</option>
<option value=Anguilla>Anguilla</option>
<option value=Antartica>Antarctica</option>
<option value=Antigua and Barbuda>Antigua and Barbuda</option>
<option value=Argentina>Argentina</option>
<option value=Armenia>Armenia</option>
<option value=Aruba>Aruba</option>
<option value=Australia>Australia</option>
<option value=Austria>Austria</option>
<option value=Azerbaijan>Azerbaijan</option>
<option value=Bahamas>Bahamas</option>
<option value=Bahrain>Bahrain</option>
<option value=Bangladesh>Bangladesh</option>
<option value=Barbados>Barbados</option>
<option value=Belarus>Belarus</option>
<option value=Belgium>Belgium</option>
<option value=Belize>Belize</option>
<option value=Benin>Benin</option>
<option value=Bermuda>Bermuda</option>
<option value=Bhutan>Bhutan</option>
<option value=Bolivia>Bolivia</option>
<option value=Bosnia and Herzegowina>Bosnia and Herzegowina</option>
<option value=Botswana>Botswana</option>
<option value=Bouvet Island>Bouvet Island</option>
<option value=Brazil>Brazil</option>
<option value=British Indian Ocean Territory>British Indian Ocean Territory</option>
<option value=Brunei Darussalam>Brunei Darussalam</option>
<option value=Bulgaria>Bulgaria</option>
<option value=Burkina Faso>Burkina Faso</option>
<option value=Burundi>Burundi</option>
<option value=Cambodia>Cambodia</option>
<option value=Cameroon>Cameroon</option>
<option value=Canada>Canada</option>
<option value=Cape Verde>Cape Verde</option>
<option value=Cayman Islands>Cayman Islands</option>
<option value=Central African Republic>Central African Republic</option>
<option value=Chad>Chad</option>
<option value=Chile>Chile</option>
<option value=China>China</option>
<option value=Christmas Island>Christmas Island</option>
<option value=Cocos Islands>Cocos (Keeling) Islands</option>
<option value=Colombia>Colombia</option>
<option value=Comoros>Comoros</option>
<option value=Congo>Congo</option>
<option value=Congo>Congo, the Democratic Republic of the</option>
<option value=Cook Islands>Cook Islands</option>
<option value=Costa Rica>Costa Rica</option>
<option value=Cota DIvoire>Cote dIvoire</option>
<option value=Croatia>Croatia (Hrvatska)</option>
<option value=Cuba>Cuba</option>
<option value=Cyprus>Cyprus</option>
<option value=Czech Republic>Czech Republic</option>
<option value=Denmark>Denmark</option>
<option value=Djibouti>Djibouti</option>
<option value=Dominica>Dominica</option>
<option value=Dominican Republic>Dominican Republic</option>
<option value=East Timor>East Timor</option>
<option value=Ecuador>Ecuador</option>
<option value=Egypt>Egypt</option>
<option value=El Salvador>El Salvador</option>
<option value=Equatorial Guinea>Equatorial Guinea</option>
<option value=Eritrea>Eritrea</option>
<option value=Estonia>Estonia</option>
<option value=Ethiopia>Ethiopia</option>
<option value=Falkland Islands>Falkland Islands (Malvinas)</option>
<option value=Faroe Islands>Faroe Islands</option>
<option value=Fiji>Fiji</option>
<option value=Finland>Finland</option>
<option value=France>France</option>
<option value=France Metropolitan>France, Metropolitan</option>
<option value=French Guiana>French Guiana</option>
<option value=French Polynesia>French Polynesia</option>
<option value=French Southern Territories>French Southern Territories</option>
<option value=Gabon>Gabon</option>
<option value=Gambia>Gambia</option>
<option value=Georgia>Georgia</option>
<option value=Germany>Germany</option>
<option value=Ghana>Ghana</option>
<option value=Gibraltar>Gibraltar</option>
<option value=Greece>Greece</option>
<option value=Greenland>Greenland</option>
<option value=Grenada>Grenada</option>
<option value=Guadeloupe>Guadeloupe</option>
<option value=Guam>Guam</option>
<option value=Guatemala>Guatemala</option>
<option value=Guinea>Guinea</option>
<option value=Guinea-Bissau>Guinea-Bissau</option>
<option value=Guyana>Guyana</option>
<option value=Haiti>Haiti</option>
<option value=Heard and McDonald Islands>Heard and Mc Donald Islands</option>
<option value=Holy See>Holy See (Vatican City State)</option>
<option value=Honduras>Honduras</option>
<option value=Hong Kong>Hong Kong</option>
<option value=Hungary>Hungary</option>
<option value=Iceland>Iceland</option>
<option value=India>India</option>
<option value=Indonesia>Indonesia</option>
<option value=Iran>Iran (Islamic Republic of)</option>
<option value=Iraq>Iraq</option>
<option value=Ireland>Ireland</option>
<option value=Israel>Israel</option>
<option value=Italy>Italy</option>
<option value=Jamaica>Jamaica</option>
<option value=Japan>Japan</option>
<option value=Jordan>Jordan</option>
<option value=Kazakhstan>Kazakhstan</option>
<option value=Kenya>Kenya</option>
<option value=Kiribati>Kiribati</option>
<option value=Democratic Peoples Republic of Korea>Korea, Democratic Peoples Republic of</option>
<option value=Korea>Korea, Republic of</option>
<option value=Kuwait>Kuwait</option>
<option value=Kyrgyzstan>Kyrgyzstan</option>
<option value=Lao>Lao Peoples Democratic Republic</option>
<option value=Latvia>Latvia</option>
<option value=Lebanon selected>Lebanon</option>
<option value=Lesotho>Lesotho</option>
<option value=Liberia>Liberia</option>
<option value=Libyan Arab Jamahiriya>Libyan Arab Jamahiriya</option>
<option value=Liechtenstein>Liechtenstein</option>
<option value=Lithuania>Lithuania</option>
<option value=Luxembourg>Luxembourg</option>
<option value=Macau>Macau</option>
<option value=Macedonia>Macedonia, The Former Yugoslav Republic of</option>
<option value=Madagascar>Madagascar</option>
<option value=Malawi>Malawi</option>
<option value=Malaysia>Malaysia</option>
<option value=Maldives>Maldives</option>
<option value=Mali>Mali</option>
<option value=Malta>Malta</option>
<option value=Marshall Islands>Marshall Islands</option>
<option value=Martinique>Martinique</option>
<option value=Mauritania>Mauritania</option>
<option value=Mauritius>Mauritius</option>
<option value=Mayotte>Mayotte</option>
<option value=Mexico>Mexico</option>
<option value=Micronesia>Micronesia, Federated States of</option>
<option value=Moldova>Moldova, Republic of</option>
<option value=Monaco>Monaco</option>
<option value=Mongolia>Mongolia</option>
<option value=Montserrat>Montserrat</option>
<option value=Morocco>Morocco</option>
<option value=Mozambique>Mozambique</option>
<option value=Myanmar>Myanmar</option>
<option value=Namibia>Namibia</option>
<option value=Nauru>Nauru</option>
<option value=Nepal>Nepal</option>
<option value=Netherlands>Netherlands</option>
<option value=Netherlands Antilles>Netherlands Antilles</option>
<option value=New Caledonia>New Caledonia</option>
<option value=New Zealand>New Zealand</option>
<option value=Nicaragua>Nicaragua</option>
<option value=Niger>Niger</option>
<option value=Nigeria>Nigeria</option>
<option value=Niue>Niue</option>
<option value=Norfolk Island>Norfolk Island</option>
<option value=Northern Mariana Islands>Northern Mariana Islands</option>
<option value=Norway>Norway</option>
<option value=Oman>Oman</option>
<option value=Pakistan>Pakistan</option>
<option value=Palau>Palau</option>
<option value=Panama>Panama</option>
<option value=Papua New Guinea>Papua New Guinea</option>
<option value=Paraguay>Paraguay</option>
<option value=Peru>Peru</option>
<option value=Philippines>Philippines</option>
<option value=Pitcairn>Pitcairn</option>
<option value=Poland>Poland</option>
<option value=Portugal>Portugal</option>
<option value=Puerto Rico>Puerto Rico</option>
<option value=Qatar>Qatar</option>
<option value=Reunion>Reunion</option>
<option value=Romania>Romania</option>
<option value=Russia>Russian Federation</option>
<option value=Rwanda>Rwanda</option>
<option value=Saint Kitts and Nevis>Saint Kitts and Nevis</option> 
<option value=Saint LUCIA>Saint LUCIA</option>
<option value=Saint Vincent>Saint Vincent and the Grenadines</option>
<option value=Samoa>Samoa</option>
<option value=San Marino>San Marino</option>
<option value=Sao Tome and Principe>Sao Tome and Principe</option> 
<option value=Saudi Arabia>Saudi Arabia</option>
<option value=Senegal>Senegal</option>
<option value=Seychelles>Seychelles</option>
<option value=Sierra>Sierra Leone</option>
<option value=Singapore>Singapore</option>
<option value=Slovakia>Slovakia (Slovak Republic)</option>
<option value=Slovenia>Slovenia</option>
<option value=Solomon Islands>Solomon Islands</option>
<option value=Somalia>Somalia</option>
<option value=South Africa>South Africa</option>
<option value=South Georgia>South Georgia and the South Sandwich Islands</option>
<option value=Span>Spain</option>
<option value=SriLanka>Sri Lanka</option>
<option value=St. Helena>St. Helena</option>
<option value=St. Pierre and Miguelon>St. Pierre and Miquelon</option>
<option value=Sudan>Sudan</option>
<option value=Suriname>Suriname</option>
<option value=Svalbard>Svalbard and Jan Mayen Islands</option>
<option value=Swaziland>Swaziland</option>
<option value=Sweden>Sweden</option>
<option value=Switzerland>Switzerland</option>
<option value=Syria>Syrian Arab Republic</option>
<option value=Taiwan>Taiwan, Province of China</option>
<option value=Tajikistan>Tajikistan</option>
<option value=Tanzania>Tanzania, United Republic of</option>
<option value=Thailand>Thailand</option>
<option value=Togo>Togo</option>
<option value=Tokelau>Tokelau</option>
<option value=Tonga>Tonga</option>
<option value=Trinidad and Tobago>Trinidad and Tobago</option>
<option value=Tunisia>Tunisia</option>
<option value=Turkey>Turkey</option>
<option value=Turkmenistan>Turkmenistan</option>
<option value=Turks and Caicos>Turks and Caicos Islands</option>
<option value=Tuvalu>Tuvalu</option>
<option value=Uganda>Uganda</option>
<option value=Ukraine>Ukraine</option>
<option value=United Arab Emirates>United Arab Emirates</option>
<option value=United Kingdom>United Kingdom</option>
<option value=United States>United States</option>
<option value=United States Minor Outlying Islands>United States Minor Outlying Islands</option>
<option value=Uruguay>Uruguay</option>
<option value=Uzbekistan>Uzbekistan</option>
<option value=Vanuatu>Vanuatu</option>
<option value=Venezuela>Venezuela</option>
<option value=Vietnam>Viet Nam</option>
<option value=Virgin Islands (British)>Virgin Islands (British)</option>
<option value=Virgin Islands (U.S)>Virgin Islands (U.S.)</option>
<option value=Wallis and Futana Islands>Wallis and Futuna Islands</option>
<option value=Western Sahara>Western Sahara</option>
<option value=Yemen>Yemen</option>
<option value=Serbia>Serbia</option>
<option value=Zambia>Zambia</option>
<option value=Zimbabwe>Zimbabwe</option>
</select>

Mine is better : )

<select name=country class=form-control id=country>
        <option value=0 label=Select a country ...  selected=selected>Select a country ... </option>
        <optgroup id=country-optgroup-Africa label=Africa>
            <option value=DZ label=Algeria>Algeria</option>
            <option value=AO label=Angola>Angola</option>
            <option value=BJ label=Benin>Benin</option>
            <option value=BW label=Botswana>Botswana</option>
            <option value=BF label=Burkina Faso>Burkina Faso</option>
            <option value=BI label=Burundi>Burundi</option>
            <option value=CM label=Cameroon>Cameroon</option>
            <option value=CV label=Cape Verde>Cape Verde</option>
            <option value=CF label=Central African Republic>Central African Republic</option>
            <option value=TD label=Chad>Chad</option>
            <option value=KM label=Comoros>Comoros</option>
            <option value=CG label=Congo - Brazzaville>Congo - Brazzaville</option>
            <option value=CD label=Congo - Kinshasa>Congo - Kinshasa</option>
            <option value=CI label=Côte d’Ivoire>Côte d’Ivoire</option>
            <option value=DJ label=Djibouti>Djibouti</option>
            <option value=EG label=Egypt>Egypt</option>
            <option value=GQ label=Equatorial Guinea>Equatorial Guinea</option>
            <option value=ER label=Eritrea>Eritrea</option>
            <option value=ET label=Ethiopia>Ethiopia</option>
            <option value=GA label=Gabon>Gabon</option>
            <option value=GM label=Gambia>Gambia</option>
            <option value=GH label=Ghana>Ghana</option>
            <option value=GN label=Guinea>Guinea</option>
            <option value=GW label=Guinea-Bissau>Guinea-Bissau</option>
            <option value=KE label=Kenya>Kenya</option>
            <option value=LS label=Lesotho>Lesotho</option>
            <option value=LR label=Liberia>Liberia</option>
            <option value=LY label=Libya>Libya</option>
            <option value=MG label=Madagascar>Madagascar</option>
            <option value=MW label=Malawi>Malawi</option>
            <option value=ML label=Mali>Mali</option>
            <option value=MR label=Mauritania>Mauritania</option>
            <option value=MU label=Mauritius>Mauritius</option>
            <option value=YT label=Mayotte>Mayotte</option>
            <option value=MA label=Morocco>Morocco</option>
            <option value=MZ label=Mozambique>Mozambique</option>
            <option value=NA label=Namibia>Namibia</option>
            <option value=NE label=Niger>Niger</option>
            <option value=NG label=Nigeria>Nigeria</option>
            <option value=RW label=Rwanda>Rwanda</option>
            <option value=RE label=Réunion>Réunion</option>
            <option value=SH label=Saint Helena>Saint Helena</option>
            <option value=SN label=Senegal>Senegal</option>
            <option value=SC label=Seychelles>Seychelles</option>
            <option value=SL label=Sierra Leone>Sierra Leone</option>
            <option value=SO label=Somalia>Somalia</option>
            <option value=ZA label=South Africa>South Africa</option>
            <option value=SD label=Sudan>Sudan</option>
            <option value=SZ label=Swaziland>Swaziland</option>
            <option value=ST label=São Tomé and Príncipe>São Tomé and Príncipe</option>
            <option value=TZ label=Tanzania>Tanzania</option>
            <option value=TG label=Togo>Togo</option>
            <option value=TN label=Tunisia>Tunisia</option>
            <option value=UG label=Uganda>Uganda</option>
            <option value=EH label=Western Sahara>Western Sahara</option>
            <option value=ZM label=Zambia>Zambia</option>
            <option value=ZW label=Zimbabwe>Zimbabwe</option>
        </optgroup>
        <optgroup id=country-optgroup-Americas label=Americas>
            <option value=AI label=Anguilla>Anguilla</option>
            <option value=AG label=Antigua and Barbuda>Antigua and Barbuda</option>
            <option value=AR label=Argentina>Argentina</option>
            <option value=AW label=Aruba>Aruba</option>
            <option value=BS label=Bahamas>Bahamas</option>
            <option value=BB label=Barbados>Barbados</option>
            <option value=BZ label=Belize>Belize</option>
            <option value=BM label=Bermuda>Bermuda</option>
            <option value=BO label=Bolivia>Bolivia</option>
            <option value=BR label=Brazil>Brazil</option>
            <option value=VG label=British Virgin Islands>British Virgin Islands</option>
            <option value=CA label=Canada>Canada</option>
            <option value=KY label=Cayman Islands>Cayman Islands</option>
            <option value=CL label=Chile>Chile</option>
            <option value=CO label=Colombia>Colombia</option>
            <option value=CR label=Costa Rica>Costa Rica</option>
            <option value=CU label=Cuba>Cuba</option>
            <option value=DM label=Dominica>Dominica</option>
            <option value=DO label=Dominican Republic>Dominican Republic</option>
            <option value=EC label=Ecuador>Ecuador</option>
            <option value=SV label=El Salvador>El Salvador</option>
            <option value=FK label=Falkland Islands>Falkland Islands</option>
            <option value=GF label=French Guiana>French Guiana</option>
            <option value=GL label=Greenland>Greenland</option>
            <option value=GD label=Grenada>Grenada</option>
            <option value=GP label=Guadeloupe>Guadeloupe</option>
            <option value=GT label=Guatemala>Guatemala</option>
            <option value=GY label=Guyana>Guyana</option>
            <option value=HT label=Haiti>Haiti</option>
            <option value=HN label=Honduras>Honduras</option>
            <option value=JM label=Jamaica>Jamaica</option>
            <option value=MQ label=Martinique>Martinique</option>
            <option value=MX label=Mexico>Mexico</option>
            <option value=MS label=Montserrat>Montserrat</option>
            <option value=AN label=Netherlands Antilles>Netherlands Antilles</option>
            <option value=NI label=Nicaragua>Nicaragua</option>
            <option value=PA label=Panama>Panama</option>
            <option value=PY label=Paraguay>Paraguay</option>
            <option value=PE label=Peru>Peru</option>
            <option value=PR label=Puerto Rico>Puerto Rico</option>
            <option value=BL label=Saint Barthélemy>Saint Barthélemy</option>
            <option value=KN label=Saint Kitts and Nevis>Saint Kitts and Nevis</option>
            <option value=LC label=Saint Lucia>Saint Lucia</option>
            <option value=MF label=Saint Martin>Saint Martin</option>
            <option value=PM label=Saint Pierre and Miquelon>Saint Pierre and Miquelon</option>
            <option value=VC label=Saint Vincent and the Grenadines>Saint Vincent and the Grenadines</option>
            <option value=SR label=Suriname>Suriname</option>
            <option value=TT label=Trinidad and Tobago>Trinidad and Tobago</option>
            <option value=TC label=Turks and Caicos Islands>Turks and Caicos Islands</option>
            <option value=VI label=U.S. Virgin Islands>U.S. Virgin Islands</option>
            <option value=US label=United States>United States</option>
            <option value=UY label=Uruguay>Uruguay</option>
            <option value=VE label=Venezuela>Venezuela</option>
        </optgroup>
        <optgroup id=country-optgroup-Asia label=Asia>
            <option value=AF label=Afghanistan>Afghanistan</option>
            <option value=AM label=Armenia>Armenia</option>
            <option value=AZ label=Azerbaijan>Azerbaijan</option>
            <option value=BH label=Bahrain>Bahrain</option>
            <option value=BD label=Bangladesh>Bangladesh</option>
            <option value=BT label=Bhutan>Bhutan</option>
            <option value=BN label=Brunei>Brunei</option>
            <option value=KH label=Cambodia>Cambodia</option>
            <option value=CN label=China>China</option>
            <option value=GE label=Georgia>Georgia</option>
            <option value=HK label=Hong Kong SAR China>Hong Kong SAR China</option>
            <option value=IN label=India>India</option>
            <option value=ID label=Indonesia>Indonesia</option>
            <option value=IR label=Iran>Iran</option>
            <option value=IQ label=Iraq>Iraq</option>
            <option value=IL label=Israel>Israel</option>
            <option value=JP label=Japan>Japan</option>
            <option value=JO label=Jordan>Jordan</option>
            <option value=KZ label=Kazakhstan>Kazakhstan</option>
            <option value=KW label=Kuwait>Kuwait</option>
            <option value=KG label=Kyrgyzstan>Kyrgyzstan</option>
            <option value=LA label=Laos>Laos</option>
            <option value=LB label=Lebanon>Lebanon</option>
            <option value=MO label=Macau SAR China>Macau SAR China</option>
            <option value=MY label=Malaysia>Malaysia</option>
            <option value=MV label=Maldives>Maldives</option>
            <option value=MN label=Mongolia>Mongolia</option>
            <option value=MM label=Myanmar [Burma]>Myanmar [Burma]</option>
            <option value=NP label=Nepal>Nepal</option>
            <option value=NT label=Neutral Zone>Neutral Zone</option>
            <option value=KP label=North Korea>North Korea</option>
            <option value=OM label=Oman>Oman</option>
            <option value=PK label=Pakistan>Pakistan</option>
            <option value=PS label=Palestinian Territories>Palestinian Territories</option>
            <option value=YD label=Peoples Democratic Republic of Yemen>Peoples Democratic Republic of Yemen</option>
            <option value=PH label=Philippines>Philippines</option>
            <option value=QA label=Qatar>Qatar</option>
            <option value=SA label=Saudi Arabia>Saudi Arabia</option>
            <option value=SG label=Singapore>Singapore</option>
            <option value=KR label=South Korea>South Korea</option>
            <option value=LK label=Sri Lanka>Sri Lanka</option>
            <option value=SY label=Syria>Syria</option>
            <option value=TW label=Taiwan>Taiwan</option>
            <option value=TJ label=Tajikistan>Tajikistan</option>
            <option value=TH label=Thailand>Thailand</option>
            <option value=TL label=Timor-Leste>Timor-Leste</option>
            <option value=TR label=Turkey>Turkey</option>
            <option value=TM label=Turkmenistan>Turkmenistan</option>
            <option value=AE label=United Arab Emirates>United Arab Emirates</option>
            <option value=UZ label=Uzbekistan>Uzbekistan</option>
            <option value=VN label=Vietnam>Vietnam</option>
            <option value=YE label=Yemen>Yemen</option>
        </optgroup>
        <optgroup id=country-optgroup-Europe label=Europe>
            <option value=AL label=Albania>Albania</option>
            <option value=AD label=Andorra>Andorra</option>
            <option value=AT label=Austria>Austria</option>
            <option value=BY label=Belarus>Belarus</option>
            <option value=BE label=Belgium>Belgium</option>
            <option value=BA label=Bosnia and Herzegovina>Bosnia and Herzegovina</option>
            <option value=BG label=Bulgaria>Bulgaria</option>
            <option value=HR label=Croatia>Croatia</option>
            <option value=CY label=Cyprus>Cyprus</option>
            <option value=CZ label=Czech Republic>Czech Republic</option>
            <option value=DK label=Denmark>Denmark</option>
            <option value=DD label=East Germany>East Germany</option>
            <option value=EE label=Estonia>Estonia</option>
            <option value=FO label=Faroe Islands>Faroe Islands</option>
            <option value=FI label=Finland>Finland</option>
            <option value=FR label=France>France</option>
            <option value=DE label=Germany>Germany</option>
            <option value=GI label=Gibraltar>Gibraltar</option>
            <option value=GR label=Greece>Greece</option>
            <option value=GG label=Guernsey>Guernsey</option>
            <option value=HU label=Hungary>Hungary</option>
            <option value=IS label=Iceland>Iceland</option>
            <option value=IE label=Ireland>Ireland</option>
            <option value=IM label=Isle of Man>Isle of Man</option>
            <option value=IT label=Italy>Italy</option>
            <option value=JE label=Jersey>Jersey</option>
            <option value=LV label=Latvia>Latvia</option>
            <option value=LI label=Liechtenstein>Liechtenstein</option>
            <option value=LT label=Lithuania>Lithuania</option>
            <option value=LU label=Luxembourg>Luxembourg</option>
            <option value=MK label=Macedonia>Macedonia</option>
            <option value=MT label=Malta>Malta</option>
            <option value=FX label=Metropolitan France>Metropolitan France</option>
            <option value=MD label=Moldova>Moldova</option>
            <option value=MC label=Monaco>Monaco</option>
            <option value=ME label=Montenegro>Montenegro</option>
            <option value=NL label=Netherlands>Netherlands</option>
            <option value=NO label=Norway>Norway</option>
            <option value=PL label=Poland>Poland</option>
            <option value=PT label=Portugal>Portugal</option>
            <option value=RO label=Romania>Romania</option>
            <option value=RU label=Russia>Russia</option>
            <option value=SM label=San Marino>San Marino</option>
            <option value=RS label=Serbia>Serbia</option>
            <option value=CS label=Serbia and Montenegro>Serbia and Montenegro</option>
            <option value=SK label=Slovakia>Slovakia</option>
            <option value=SI label=Slovenia>Slovenia</option>
            <option value=ES label=Spain>Spain</option>
            <option value=SJ label=Svalbard and Jan Mayen>Svalbard and Jan Mayen</option>
            <option value=SE label=Sweden>Sweden</option>
            <option value=CH label=Switzerland>Switzerland</option>
            <option value=UA label=Ukraine>Ukraine</option>
            <option value=SU label=Union of Soviet Socialist Republics>Union of Soviet Socialist Republics</option>
            <option value=GB label=United Kingdom>United Kingdom</option>
            <option value=VA label=Vatican City>Vatican City</option>
            <option value=AX label=Åland Islands>Åland Islands</option>
        </optgroup>
        <optgroup id=country-optgroup-Oceania label=Oceania>
            <option value=AS label=American Samoa>American Samoa</option>
            <option value=AQ label=Antarctica>Antarctica</option>
            <option value=AU label=Australia>Australia</option>
            <option value=BV label=Bouvet Island>Bouvet Island</option>
            <option value=IO label=British Indian Ocean Territory>British Indian Ocean Territory</option>
            <option value=CX label=Christmas Island>Christmas Island</option>
            <option value=CC label=Cocos [Keeling] Islands>Cocos [Keeling] Islands</option>
            <option value=CK label=Cook Islands>Cook Islands</option>
            <option value=FJ label=Fiji>Fiji</option>
            <option value=PF label=French Polynesia>French Polynesia</option>
            <option value=TF label=French Southern Territories>French Southern Territories</option>
            <option value=GU label=Guam>Guam</option>
            <option value=HM label=Heard Island and McDonald Islands>Heard Island and McDonald Islands</option>
            <option value=KI label=Kiribati>Kiribati</option>
            <option value=MH label=Marshall Islands>Marshall Islands</option>
            <option value=FM label=Micronesia>Micronesia</option>
            <option value=NR label=Nauru>Nauru</option>
            <option value=NC label=New Caledonia>New Caledonia</option>
            <option value=NZ label=New Zealand>New Zealand</option>
            <option value=NU label=Niue>Niue</option>
            <option value=NF label=Norfolk Island>Norfolk Island</option>
            <option value=MP label=Northern Mariana Islands>Northern Mariana Islands</option>
            <option value=PW label=Palau>Palau</option>
            <option value=PG label=Papua New Guinea>Papua New Guinea</option>
            <option value=PN label=Pitcairn Islands>Pitcairn Islands</option>
            <option value=WS label=Samoa>Samoa</option>
            <option value=SB label=Solomon Islands>Solomon Islands</option>
            <option value=GS label=South Georgia and the South Sandwich Islands>South Georgia and the South Sandwich Islands</option>
            <option value=TK label=Tokelau>Tokelau</option>
            <option value=TO label=Tonga>Tonga</option>
            <option value=TV label=Tuvalu>Tuvalu</option>
            <option value=UM label=U.S. Minor Outlying Islands>U.S. Minor Outlying Islands</option>
            <option value=VU label=Vanuatu>Vanuatu</option>
            <option value=WF label=Wallis and Futuna>Wallis and Futuna</option>
        </optgroup>
    </select>

drop down menu – Select Country Dropdown in html page

Here is a list of countries,

ISO-3166-1: Alpha-2 Codes

<select>
    <option value=AF>Afghanistan</option>
    <option value=AX>Åland Islands</option>
    <option value=AL>Albania</option>
    <option value=DZ>Algeria</option>
    <option value=AS>American Samoa</option>
    <option value=AD>Andorra</option>
    <option value=AO>Angola</option>
    <option value=AI>Anguilla</option>
    <option value=AQ>Antarctica</option>
    <option value=AG>Antigua and Barbuda</option>
    <option value=AR>Argentina</option>
    <option value=AM>Armenia</option>
    <option value=AW>Aruba</option>
    <option value=AU>Australia</option>
    <option value=AT>Austria</option>
    <option value=AZ>Azerbaijan</option>
    <option value=BS>Bahamas</option>
    <option value=BH>Bahrain</option>
    <option value=BD>Bangladesh</option>
    <option value=BB>Barbados</option>
    <option value=BY>Belarus</option>
    <option value=BE>Belgium</option>
    <option value=BZ>Belize</option>
    <option value=BJ>Benin</option>
    <option value=BM>Bermuda</option>
    <option value=BT>Bhutan</option>
    <option value=BO>Bolivia, Plurinational State of</option>
    <option value=BQ>Bonaire, Sint Eustatius and Saba</option>
    <option value=BA>Bosnia and Herzegovina</option>
    <option value=BW>Botswana</option>
    <option value=BV>Bouvet Island</option>
    <option value=BR>Brazil</option>
    <option value=IO>British Indian Ocean Territory</option>
    <option value=BN>Brunei Darussalam</option>
    <option value=BG>Bulgaria</option>
    <option value=BF>Burkina Faso</option>
    <option value=BI>Burundi</option>
    <option value=KH>Cambodia</option>
    <option value=CM>Cameroon</option>
    <option value=CA>Canada</option>
    <option value=CV>Cape Verde</option>
    <option value=KY>Cayman Islands</option>
    <option value=CF>Central African Republic</option>
    <option value=TD>Chad</option>
    <option value=CL>Chile</option>
    <option value=CN>China</option>
    <option value=CX>Christmas Island</option>
    <option value=CC>Cocos (Keeling) Islands</option>
    <option value=CO>Colombia</option>
    <option value=KM>Comoros</option>
    <option value=CG>Congo</option>
    <option value=CD>Congo, the Democratic Republic of the</option>
    <option value=CK>Cook Islands</option>
    <option value=CR>Costa Rica</option>
    <option value=CI>Côte dIvoire</option>
    <option value=HR>Croatia</option>
    <option value=CU>Cuba</option>
    <option value=CW>Curaçao</option>
    <option value=CY>Cyprus</option>
    <option value=CZ>Czech Republic</option>
    <option value=DK>Denmark</option>
    <option value=DJ>Djibouti</option>
    <option value=DM>Dominica</option>
    <option value=DO>Dominican Republic</option>
    <option value=EC>Ecuador</option>
    <option value=EG>Egypt</option>
    <option value=SV>El Salvador</option>
    <option value=GQ>Equatorial Guinea</option>
    <option value=ER>Eritrea</option>
    <option value=EE>Estonia</option>
    <option value=ET>Ethiopia</option>
    <option value=FK>Falkland Islands (Malvinas)</option>
    <option value=FO>Faroe Islands</option>
    <option value=FJ>Fiji</option>
    <option value=FI>Finland</option>
    <option value=FR>France</option>
    <option value=GF>French Guiana</option>
    <option value=PF>French Polynesia</option>
    <option value=TF>French Southern Territories</option>
    <option value=GA>Gabon</option>
    <option value=GM>Gambia</option>
    <option value=GE>Georgia</option>
    <option value=DE>Germany</option>
    <option value=GH>Ghana</option>
    <option value=GI>Gibraltar</option>
    <option value=GR>Greece</option>
    <option value=GL>Greenland</option>
    <option value=GD>Grenada</option>
    <option value=GP>Guadeloupe</option>
    <option value=GU>Guam</option>
    <option value=GT>Guatemala</option>
    <option value=GG>Guernsey</option>
    <option value=GN>Guinea</option>
    <option value=GW>Guinea-Bissau</option>
    <option value=GY>Guyana</option>
    <option value=HT>Haiti</option>
    <option value=HM>Heard Island and McDonald Islands</option>
    <option value=VA>Holy See (Vatican City State)</option>
    <option value=HN>Honduras</option>
    <option value=HK>Hong Kong</option>
    <option value=HU>Hungary</option>
    <option value=IS>Iceland</option>
    <option value=IN>India</option>
    <option value=ID>Indonesia</option>
    <option value=IR>Iran, Islamic Republic of</option>
    <option value=IQ>Iraq</option>
    <option value=IE>Ireland</option>
    <option value=IM>Isle of Man</option>
    <option value=IL>Israel</option>
    <option value=IT>Italy</option>
    <option value=JM>Jamaica</option>
    <option value=JP>Japan</option>
    <option value=JE>Jersey</option>
    <option value=JO>Jordan</option>
    <option value=KZ>Kazakhstan</option>
    <option value=KE>Kenya</option>
    <option value=KI>Kiribati</option>
    <option value=KP>Korea, Democratic Peoples Republic of</option>
    <option value=KR>Korea, Republic of</option>
    <option value=KW>Kuwait</option>
    <option value=KG>Kyrgyzstan</option>
    <option value=LA>Lao Peoples Democratic Republic</option>
    <option value=LV>Latvia</option>
    <option value=LB>Lebanon</option>
    <option value=LS>Lesotho</option>
    <option value=LR>Liberia</option>
    <option value=LY>Libya</option>
    <option value=LI>Liechtenstein</option>
    <option value=LT>Lithuania</option>
    <option value=LU>Luxembourg</option>
    <option value=MO>Macao</option>
    <option value=MK>Macedonia, the former Yugoslav Republic of</option>
    <option value=MG>Madagascar</option>
    <option value=MW>Malawi</option>
    <option value=MY>Malaysia</option>
    <option value=MV>Maldives</option>
    <option value=ML>Mali</option>
    <option value=MT>Malta</option>
    <option value=MH>Marshall Islands</option>
    <option value=MQ>Martinique</option>
    <option value=MR>Mauritania</option>
    <option value=MU>Mauritius</option>
    <option value=YT>Mayotte</option>
    <option value=MX>Mexico</option>
    <option value=FM>Micronesia, Federated States of</option>
    <option value=MD>Moldova, Republic of</option>
    <option value=MC>Monaco</option>
    <option value=MN>Mongolia</option>
    <option value=ME>Montenegro</option>
    <option value=MS>Montserrat</option>
    <option value=MA>Morocco</option>
    <option value=MZ>Mozambique</option>
    <option value=MM>Myanmar</option>
    <option value=NA>Namibia</option>
    <option value=NR>Nauru</option>
    <option value=NP>Nepal</option>
    <option value=NL>Netherlands</option>
    <option value=NC>New Caledonia</option>
    <option value=NZ>New Zealand</option>
    <option value=NI>Nicaragua</option>
    <option value=NE>Niger</option>
    <option value=NG>Nigeria</option>
    <option value=NU>Niue</option>
    <option value=NF>Norfolk Island</option>
    <option value=MP>Northern Mariana Islands</option>
    <option value=NO>Norway</option>
    <option value=OM>Oman</option>
    <option value=PK>Pakistan</option>
    <option value=PW>Palau</option>
    <option value=PS>Palestinian Territory, Occupied</option>
    <option value=PA>Panama</option>
    <option value=PG>Papua New Guinea</option>
    <option value=PY>Paraguay</option>
    <option value=PE>Peru</option>
    <option value=PH>Philippines</option>
    <option value=PN>Pitcairn</option>
    <option value=PL>Poland</option>
    <option value=PT>Portugal</option>
    <option value=PR>Puerto Rico</option>
    <option value=QA>Qatar</option>
    <option value=RE>Réunion</option>
    <option value=RO>Romania</option>
    <option value=RU>Russian Federation</option>
    <option value=RW>Rwanda</option>
    <option value=BL>Saint Barthélemy</option>
    <option value=SH>Saint Helena, Ascension and Tristan da Cunha</option>
    <option value=KN>Saint Kitts and Nevis</option>
    <option value=LC>Saint Lucia</option>
    <option value=MF>Saint Martin (French part)</option>
    <option value=PM>Saint Pierre and Miquelon</option>
    <option value=VC>Saint Vincent and the Grenadines</option>
    <option value=WS>Samoa</option>
    <option value=SM>San Marino</option>
    <option value=ST>Sao Tome and Principe</option>
    <option value=SA>Saudi Arabia</option>
    <option value=SN>Senegal</option>
    <option value=RS>Serbia</option>
    <option value=SC>Seychelles</option>
    <option value=SL>Sierra Leone</option>
    <option value=SG>Singapore</option>
    <option value=SX>Sint Maarten (Dutch part)</option>
    <option value=SK>Slovakia</option>
    <option value=SI>Slovenia</option>
    <option value=SB>Solomon Islands</option>
    <option value=SO>Somalia</option>
    <option value=ZA>South Africa</option>
    <option value=GS>South Georgia and the South Sandwich Islands</option>
    <option value=SS>South Sudan</option>
    <option value=ES>Spain</option>
    <option value=LK>Sri Lanka</option>
    <option value=SD>Sudan</option>
    <option value=SR>Suriname</option>
    <option value=SJ>Svalbard and Jan Mayen</option>
    <option value=SZ>Swaziland</option>
    <option value=SE>Sweden</option>
    <option value=CH>Switzerland</option>
    <option value=SY>Syrian Arab Republic</option>
    <option value=TW>Taiwan, Province of China</option>
    <option value=TJ>Tajikistan</option>
    <option value=TZ>Tanzania, United Republic of</option>
    <option value=TH>Thailand</option>
    <option value=TL>Timor-Leste</option>
    <option value=TG>Togo</option>
    <option value=TK>Tokelau</option>
    <option value=TO>Tonga</option>
    <option value=TT>Trinidad and Tobago</option>
    <option value=TN>Tunisia</option>
    <option value=TR>Turkey</option>
    <option value=TM>Turkmenistan</option>
    <option value=TC>Turks and Caicos Islands</option>
    <option value=TV>Tuvalu</option>
    <option value=UG>Uganda</option>
    <option value=UA>Ukraine</option>
    <option value=AE>United Arab Emirates</option>
    <option value=GB>United Kingdom</option>
    <option value=US>United States</option>
    <option value=UM>United States Minor Outlying Islands</option>
    <option value=UY>Uruguay</option>
    <option value=UZ>Uzbekistan</option>
    <option value=VU>Vanuatu</option>
    <option value=VE>Venezuela, Bolivarian Republic of</option>
    <option value=VN>Viet Nam</option>
    <option value=VG>Virgin Islands, British</option>
    <option value=VI>Virgin Islands, U.S.</option>
    <option value=WF>Wallis and Futuna</option>
    <option value=EH>Western Sahara</option>
    <option value=YE>Yemen</option>
    <option value=ZM>Zambia</option>
    <option value=ZW>Zimbabwe</option>
</select>

ISO-3166-1: Alpha-3 Codes

<select>
    <option value=AFG>Afghanistan</option>
    <option value=ALA>Åland Islands</option>
    <option value=ALB>Albania</option>
    <option value=DZA>Algeria</option>
    <option value=ASM>American Samoa</option>
    <option value=AND>Andorra</option>
    <option value=AGO>Angola</option>
    <option value=AIA>Anguilla</option>
    <option value=ATA>Antarctica</option>
    <option value=ATG>Antigua and Barbuda</option>
    <option value=ARG>Argentina</option>
    <option value=ARM>Armenia</option>
    <option value=ABW>Aruba</option>
    <option value=AUS>Australia</option>
    <option value=AUT>Austria</option>
    <option value=AZE>Azerbaijan</option>
    <option value=BHS>Bahamas</option>
    <option value=BHR>Bahrain</option>
    <option value=BGD>Bangladesh</option>
    <option value=BRB>Barbados</option>
    <option value=BLR>Belarus</option>
    <option value=BEL>Belgium</option>
    <option value=BLZ>Belize</option>
    <option value=BEN>Benin</option>
    <option value=BMU>Bermuda</option>
    <option value=BTN>Bhutan</option>
    <option value=BOL>Bolivia, Plurinational State of</option>
    <option value=BES>Bonaire, Sint Eustatius and Saba</option>
    <option value=BIH>Bosnia and Herzegovina</option>
    <option value=BWA>Botswana</option>
    <option value=BVT>Bouvet Island</option>
    <option value=BRA>Brazil</option>
    <option value=IOT>British Indian Ocean Territory</option>
    <option value=BRN>Brunei Darussalam</option>
    <option value=BGR>Bulgaria</option>
    <option value=BFA>Burkina Faso</option>
    <option value=BDI>Burundi</option>
    <option value=KHM>Cambodia</option>
    <option value=CMR>Cameroon</option>
    <option value=CAN>Canada</option>
    <option value=CPV>Cape Verde</option>
    <option value=CYM>Cayman Islands</option>
    <option value=CAF>Central African Republic</option>
    <option value=TCD>Chad</option>
    <option value=CHL>Chile</option>
    <option value=CHN>China</option>
    <option value=CXR>Christmas Island</option>
    <option value=CCK>Cocos (Keeling) Islands</option>
    <option value=COL>Colombia</option>
    <option value=COM>Comoros</option>
    <option value=COG>Congo</option>
    <option value=COD>Congo, the Democratic Republic of the</option>
    <option value=COK>Cook Islands</option>
    <option value=CRI>Costa Rica</option>
    <option value=CIV>Côte dIvoire</option>
    <option value=HRV>Croatia</option>
    <option value=CUB>Cuba</option>
    <option value=CUW>Curaçao</option>
    <option value=CYP>Cyprus</option>
    <option value=CZE>Czech Republic</option>
    <option value=DNK>Denmark</option>
    <option value=DJI>Djibouti</option>
    <option value=DMA>Dominica</option>
    <option value=DOM>Dominican Republic</option>
    <option value=ECU>Ecuador</option>
    <option value=EGY>Egypt</option>
    <option value=SLV>El Salvador</option>
    <option value=GNQ>Equatorial Guinea</option>
    <option value=ERI>Eritrea</option>
    <option value=EST>Estonia</option>
    <option value=ETH>Ethiopia</option>
    <option value=FLK>Falkland Islands (Malvinas)</option>
    <option value=FRO>Faroe Islands</option>
    <option value=FJI>Fiji</option>
    <option value=FIN>Finland</option>
    <option value=FRA>France</option>
    <option value=GUF>French Guiana</option>
    <option value=PYF>French Polynesia</option>
    <option value=ATF>French Southern Territories</option>
    <option value=GAB>Gabon</option>
    <option value=GMB>Gambia</option>
    <option value=GEO>Georgia</option>
    <option value=DEU>Germany</option>
    <option value=GHA>Ghana</option>
    <option value=GIB>Gibraltar</option>
    <option value=GRC>Greece</option>
    <option value=GRL>Greenland</option>
    <option value=GRD>Grenada</option>
    <option value=GLP>Guadeloupe</option>
    <option value=GUM>Guam</option>
    <option value=GTM>Guatemala</option>
    <option value=GGY>Guernsey</option>
    <option value=GIN>Guinea</option>
    <option value=GNB>Guinea-Bissau</option>
    <option value=GUY>Guyana</option>
    <option value=HTI>Haiti</option>
    <option value=HMD>Heard Island and McDonald Islands</option>
    <option value=VAT>Holy See (Vatican City State)</option>
    <option value=HND>Honduras</option>
    <option value=HKG>Hong Kong</option>
    <option value=HUN>Hungary</option>
    <option value=ISL>Iceland</option>
    <option value=IND>India</option>
    <option value=IDN>Indonesia</option>
    <option value=IRN>Iran, Islamic Republic of</option>
    <option value=IRQ>Iraq</option>
    <option value=IRL>Ireland</option>
    <option value=IMN>Isle of Man</option>
    <option value=ISR>Israel</option>
    <option value=ITA>Italy</option>
    <option value=JAM>Jamaica</option>
    <option value=JPN>Japan</option>
    <option value=JEY>Jersey</option>
    <option value=JOR>Jordan</option>
    <option value=KAZ>Kazakhstan</option>
    <option value=KEN>Kenya</option>
    <option value=KIR>Kiribati</option>
    <option value=PRK>Korea, Democratic Peoples Republic of</option>
    <option value=KOR>Korea, Republic of</option>
    <option value=KWT>Kuwait</option>
    <option value=KGZ>Kyrgyzstan</option>
    <option value=LAO>Lao Peoples Democratic Republic</option>
    <option value=LVA>Latvia</option>
    <option value=LBN>Lebanon</option>
    <option value=LSO>Lesotho</option>
    <option value=LBR>Liberia</option>
    <option value=LBY>Libya</option>
    <option value=LIE>Liechtenstein</option>
    <option value=LTU>Lithuania</option>
    <option value=LUX>Luxembourg</option>
    <option value=MAC>Macao</option>
    <option value=MKD>Macedonia, the former Yugoslav Republic of</option>
    <option value=MDG>Madagascar</option>
    <option value=MWI>Malawi</option>
    <option value=MYS>Malaysia</option>
    <option value=MDV>Maldives</option>
    <option value=MLI>Mali</option>
    <option value=MLT>Malta</option>
    <option value=MHL>Marshall Islands</option>
    <option value=MTQ>Martinique</option>
    <option value=MRT>Mauritania</option>
    <option value=MUS>Mauritius</option>
    <option value=MYT>Mayotte</option>
    <option value=MEX>Mexico</option>
    <option value=FSM>Micronesia, Federated States of</option>
    <option value=MDA>Moldova, Republic of</option>
    <option value=MCO>Monaco</option>
    <option value=MNG>Mongolia</option>
    <option value=MNE>Montenegro</option>
    <option value=MSR>Montserrat</option>
    <option value=MAR>Morocco</option>
    <option value=MOZ>Mozambique</option>
    <option value=MMR>Myanmar</option>
    <option value=NAM>Namibia</option>
    <option value=NRU>Nauru</option>
    <option value=NPL>Nepal</option>
    <option value=NLD>Netherlands</option>
    <option value=NCL>New Caledonia</option>
    <option value=NZL>New Zealand</option>
    <option value=NIC>Nicaragua</option>
    <option value=NER>Niger</option>
    <option value=NGA>Nigeria</option>
    <option value=NIU>Niue</option>
    <option value=NFK>Norfolk Island</option>
    <option value=MNP>Northern Mariana Islands</option>
    <option value=NOR>Norway</option>
    <option value=OMN>Oman</option>
    <option value=PAK>Pakistan</option>
    <option value=PLW>Palau</option>
    <option value=PSE>Palestinian Territory, Occupied</option>
    <option value=PAN>Panama</option>
    <option value=PNG>Papua New Guinea</option>
    <option value=PRY>Paraguay</option>
    <option value=PER>Peru</option>
    <option value=PHL>Philippines</option>
    <option value=PCN>Pitcairn</option>
    <option value=POL>Poland</option>
    <option value=PRT>Portugal</option>
    <option value=PRI>Puerto Rico</option>
    <option value=QAT>Qatar</option>
    <option value=REU>Réunion</option>
    <option value=ROU>Romania</option>
    <option value=RUS>Russian Federation</option>
    <option value=RWA>Rwanda</option>
    <option value=BLM>Saint Barthélemy</option>
    <option value=SHN>Saint Helena, Ascension and Tristan da Cunha</option>
    <option value=KNA>Saint Kitts and Nevis</option>
    <option value=LCA>Saint Lucia</option>
    <option value=MAF>Saint Martin (French part)</option>
    <option value=SPM>Saint Pierre and Miquelon</option>
    <option value=VCT>Saint Vincent and the Grenadines</option>
    <option value=WSM>Samoa</option>
    <option value=SMR>San Marino</option>
    <option value=STP>Sao Tome and Principe</option>
    <option value=SAU>Saudi Arabia</option>
    <option value=SEN>Senegal</option>
    <option value=SRB>Serbia</option>
    <option value=SYC>Seychelles</option>
    <option value=SLE>Sierra Leone</option>
    <option value=SGP>Singapore</option>
    <option value=SXM>Sint Maarten (Dutch part)</option>
    <option value=SVK>Slovakia</option>
    <option value=SVN>Slovenia</option>
    <option value=SLB>Solomon Islands</option>
    <option value=SOM>Somalia</option>
    <option value=ZAF>South Africa</option>
    <option value=SGS>South Georgia and the South Sandwich Islands</option>
    <option value=SSD>South Sudan</option>
    <option value=ESP>Spain</option>
    <option value=LKA>Sri Lanka</option>
    <option value=SDN>Sudan</option>
    <option value=SUR>Suriname</option>
    <option value=SJM>Svalbard and Jan Mayen</option>
    <option value=SWZ>Swaziland</option>
    <option value=SWE>Sweden</option>
    <option value=CHE>Switzerland</option>
    <option value=SYR>Syrian Arab Republic</option>
    <option value=TWN>Taiwan, Province of China</option>
    <option value=TJK>Tajikistan</option>
    <option value=TZA>Tanzania, United Republic of</option>
    <option value=THA>Thailand</option>
    <option value=TLS>Timor-Leste</option>
    <option value=TGO>Togo</option>
    <option value=TKL>Tokelau</option>
    <option value=TON>Tonga</option>
    <option value=TTO>Trinidad and Tobago</option>
    <option value=TUN>Tunisia</option>
    <option value=TUR>Turkey</option>
    <option value=TKM>Turkmenistan</option>
    <option value=TCA>Turks and Caicos Islands</option>
    <option value=TUV>Tuvalu</option>
    <option value=UGA>Uganda</option>
    <option value=UKR>Ukraine</option>
    <option value=ARE>United Arab Emirates</option>
    <option value=GBR>United Kingdom</option>
    <option value=USA>United States</option>
    <option value=UMI>United States Minor Outlying Islands</option>
    <option value=URY>Uruguay</option>
    <option value=UZB>Uzbekistan</option>
    <option value=VUT>Vanuatu</option>
    <option value=VEN>Venezuela, Bolivarian Republic of</option>
    <option value=VNM>Viet Nam</option>
    <option value=VGB>Virgin Islands, British</option>
    <option value=VIR>Virgin Islands, U.S.</option>
    <option value=WLF>Wallis and Futuna</option>
    <option value=ESH>Western Sahara</option>
    <option value=YEM>Yemen</option>
    <option value=ZMB>Zambia</option>
    <option value=ZWE>Zimbabwe</option>
</select>

Also, for more formats please visit

https://www.freeformatter.com/iso-country-list-html-select.html

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