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CSS

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HTML 

              
                <div class="mb-4" data-controller="combobox">
  <label data-combobox-target="label" for="destination-datalist" class="block text-gray-700 text-sm font-bold mb-2">
    <span class="">Countries</span>
  </label>
  <div data-combobox-target="selected" class="mb-2">
    <label data-combobox-target="emptyBadge" class="px-2 py-1 relative inline-flex items-center rounded-full border border-dashed border-gray-400 bg-transparent" for="">
      <div class="absolute flex items-center h-5">
        <input class="border border-dashed border-gray-400 rounded" type="checkbox" value="" name="review[countries][]" id="" disabled>
      </div>
      <div class="pl-6 text-sm leading-5">
        <span class="font-medium text-gray-400 mb-0 normal-case">
          None selected
        </span>
      </div>
    </label>
    
  </div>
  <div class="block relative">
    <input type="text" id="destination-datalist" list="countries" placeholder="Type to find options&hellip;" data-combobox-target="input" data-action="input->combobox#chooseAndReset keyup.enter->combobox#addAndReset focus->combobox#showList" autocapitalize="none" autocomplete="off" spellcheck="false" class="appearance-none block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm placeholder-gray-400 focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm">
    <datalist id="countries">
      <option value="Afghanistan" />
      <option value="Åland Islands" />
      <option value="Albania" />
      <option value="Algeria" />
      <option value="American Samoa" />
      <option value="Andorra" />
      <option value="Angola" />
      <option value="Anguilla" />
      <option value="Antarctica" />
      <option value="Antigua And Barbuda" />
      <option value="Argentina" />
      <option value="Armenia" />
      <option value="Aruba" />
      <option value="Australia" />
      <option value="Austria" />
      <option value="Azerbaijan" />
      <option value="Bahamas" />
      <option value="Bahrain" />
      <option value="Bangladesh" />
      <option value="Barbados" />
      <option value="Belarus" />
      <option value="Belgium" />
      <option value="Belize" />
      <option value="Benin" />
      <option value="Bermuda" />
      <option value="Bhutan" />
      <option value="Bolivia" />
      <option value="Bonaire, Sint Eustatius and Saba" />
      <option value="Bosnia and Herzegovina" />
      <option value="Botswana" />
      <option value="Bouvet Island" />
      <option value="Brazil" />
      <option value="British Indian Ocean Territory" />
      <option value="Brunei Darussalam" />
      <option value="Bulgaria" />
      <option value="Burkina Faso" />
      <option value="Burundi" />
      <option value="Cambodia" />
      <option value="Cameroon" />
      <option value="Canada" />
      <option value="Cape Verde" />
      <option value="Cayman Islands" />
      <option value="Central African Republic" />
      <option value="Chad" />
      <option value="Chile" />
      <option value="China" />
      <option value="Christmas Island" />
      <option value="Cocos (Keeling) Islands" />
      <option value="Colombia" />
      <option value="Comoros" />
      <option value="Congo" />
      <option value="Congo, the Democratic Republic of the" />
      <option value="Cook Islands" />
      <option value="Costa Rica" />
      <option value="Côte d'Ivoire" />
      <option value="Croatia" />
      <option value="Cuba" />
      <option value="Curaçao" />
      <option value="Cyprus" />
      <option value="Czech Republic" />
      <option value="Denmark" />
      <option value="Djibouti" />
      <option value="Dominica" />
      <option value="Dominican Republic" />
      <option value="Ecuador" />
      <option value="Egypt" />
      <option value="El Salvador" />
      <option value="Equatorial Guinea" />
      <option value="Eritrea" />
      <option value="Estonia" />
      <option value="Ethiopia" />
      <option value="Falkland Islands (Malvinas)" />
      <option value="Faroe Islands" />
      <option value="Fiji" />
      <option value="Finland" />
      <option value="France" />
      <option value="French Guiana" />
      <option value="French Polynesia" />
      <option value="French Southern Territories" />
      <option value="Gabon" />
      <option value="Gambia" />
      <option value="Georgia" />
      <option value="Germany" />
      <option value="Ghana" />
      <option value="Gibraltar" />
      <option value="Greece" />
      <option value="Greenland" />
      <option value="Grenada" />
      <option value="Guadeloupe" />
      <option value="Guam" />
      <option value="Guatemala" />
      <option value="Guernsey" />
      <option value="Guinea" />
      <option value="Guinea-Bissau" />
      <option value="Guyana" />
      <option value="Haiti" />
      <option value="Heard Island and McDonald Islands" />
      <option value="Holy See (Vatican City State)" />    
      <option value="Honduras" />
      <option value="Hong Kong" />
      <option value="Hungary" />
      <option value="Iceland" />
      <option value="India" />
      <option value="Indonesia" />
      <option value="Iran, Islamic Republic of" />
      <option value="Iraq" />
      <option value="Ireland" />
      <option value="Isle of Man" />
      <option value="Israel" />
      <option value="Italy" />
      <option value="Jamaica" />
      <option value="Japan" />
      <option value="Jersey" />
      <option value="Jordan" />
      <option value="Kazakhstan" />
      <option value="Kenya" />
      <option value="Kiribati" />
      <option value="Korea, Democratic People's Republic of" />
      <option value="Korea, Republic of" />
      <option value="Kuwait" />
      <option value="Kyrgyzstan" />
      <option value="Lao People's Democratic Republic" />
      <option value="Latvia" />
      <option value="Lebanon" />
      <option value="Lesotho" />
      <option value="Liberia" />
      <option value="Libyan Arab Jamahiriya" />
      <option value="Liechtenstein" />
      <option value="Lithuania" />
      <option value="Luxembourg" />
      <option value="Macao" />
      <option value="Macedonia, The Former Yugoslav Republic Of" />
      <option value="Madagascar" />
      <option value="Malawi" />
      <option value="Malaysia" />
      <option value="Maldives" />
      <option value="Mali" />
      <option value="Malta" />
      <option value="Marshall Islands" />
      <option value="Martinique" />
      <option value="Mauritania" />
      <option value="Mauritius" />
      <option value="Mayotte" />
      <option value="Mexico" />
      <option value="Micronesia, Federated States of" />
      <option value="Moldova, Republic of" />
      <option value="Monaco" />
      <option value="Mongolia" />
      <option value="Montenegro" />
      <option value="Montserrat" />
      <option value="Morocco" />
      <option value="Mozambique" />
      <option value="Myanmar" />
      <option value="Namibia" />
      <option value="Nauru" />
      <option value="Nepal" />
      <option value="Netherlands" />
      <option value="New Caledonia" />
      <option value="New Zealand" />
      <option value="Nicaragua" />
      <option value="Niger" />
      <option value="Nigeria" />
      <option value="Niue" />
      <option value="Norfolk Island" />
      <option value="Northern Mariana Islands" />
      <option value="Norway" />
      <option value="Oman" />
      <option value="Pakistan" />
      <option value="Palau" />
      <option value="Palestinian Territory, Occupied" />
      <option value="Panama" />
      <option value="Papua New Guinea" />
      <option value="Paraguay" />
      <option value="Peru" />
      <option value="Philippines" />
      <option value="Pitcairn" />
      <option value="Poland" />
      <option value="Portugal" />
      <option value="Puerto Rico" />
      <option value="Qatar" />
      <option value="Réunion" />
      <option value="Romania" />
      <option value="Russian Federation" />
      <option value="Rwanda" />
      <option value="Saint Barthélemy" />
      <option value="Saint Helena" />
      <option value="Saint Kitts and Nevis" />
      <option value="Saint Lucia" />
      <option value="Saint Martin (French Part)" />
      <option value="Saint Pierre and Miquelon" />
      <option value="Saint Vincent and the Grenadines" />
      <option value="Samoa" />
      <option value="San Marino" />
      <option value="Sao Tome and Principe" />
      <option value="Saudi Arabia" />
      <option value="Senegal" />
      <option value="Serbia" />
      <option value="Seychelles" />
      <option value="Sierra Leone" />
      <option value="Singapore" />
      <option value="Sint Maarten (Dutch Part)" />
      <option value="Slovakia" />
      <option value="Slovenia" />
      <option value="Solomon Islands" />
      <option value="Somalia" />
      <option value="South Africa" />
      <option value="South Georgia and the South Sandwich Islands" />
      <option value="South Sudan" />
      <option value="Spain" />
      <option value="Sri Lanka" />
      <option value="Sudan" />
      <option value="Suriname" />
      <option value="Svalbard and Jan Mayen" />
      <option value="Swaziland" />
      <option value="Sweden" />
      <option value="Switzerland" />
      <option value="Syrian Arab Republic" />
      <option value="Taiwan, Province of China" />
      <option value="Tajikistan" />
      <option value="Tanzania, United Republic of" />  
      <option value="Thailand" />
      <option value="Timor-Leste" />
      <option value="Togo" />
      <option value="Tokelau" />
      <option value="Tonga" />
      <option value="Trinidad and Tobago" />
      <option value="Tunisia" />
      <option value="Turkey" />
      <option value="Turkmenistan" />
      <option value="Turks and Caicos Islands" />
      <option value="Tuvalu" />
      <option value="Uganda" />
      <option value="Ukraine" />
      <option value="United Arab Emirates" />
      <option value="United Kingdom" />
      <option value="United States" />
      <option value="United States Minor Outlying Islands" />
      <option value="Uruguay" />
      <option value="Uzbekistan" />
      <option value="Vanuatu" />
      <option value="Venezuela" />
      <option value="Vietnam" />
      <option value="Virgin Islands, British" />
      <option value="Virgin Islands, U.S." />
      <option value="Wallis and Futuna" />
      <option value="Western Sahara" />
      <option value="Yemen" />
      <option value="Zambia" />
      <option value="Zimbabwe" />
    </datalist>
    <div class="pointer-events-none absolute inset-y-0 right-0 flex items-center px-2 text-gray-700">
      <svg class="h-5 w-5 text-gray-400" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
        <path fill-rule="evenodd" d="M10 3a.75.75 0 01.55.24l3.25 3.5a.75.75 0 11-1.1 1.02L10 4.852 7.3 7.76a.75.75 0 01-1.1-1.02l3.25-3.5A.75.75 0 0110 3zm-3.76 9.2a.75.75 0 011.06.04l2.7 2.908 2.7-2.908a.75.75 0 111.1 1.02l-3.25 3.5a.75.75 0 01-1.1 0l-3.25-3.5a.75.75 0 01.04-1.06z" clip-rule="evenodd" />
      </svg>
    </div>
  </div>
  <p class="mt-2 text-sm text-gray-500">Begin typing or focus input to see list of options.</p>
  
  <template data-combobox-target="template">
    <label data-combobox-target="badge" class="px-2 py-1 relative inline-flex items-center rounded-full border border-transparent bg-indigo-400 hover:border-indigo-600 cursor-pointer" for="">
      <div class="absolute flex items-center h-5">
        <input data-combobox-target="badgeCheckbox" data-action="combobox#removeItem" class="text-indigo-600 border border-indigo-600 rounded" type="checkbox" value="" name="review[countries][]" id="" checked>
      </div>
      <div class="pl-6 text-sm leading-5">
        <span data-combobox-target="badgeText" class="font-medium text-white mb-0 normal-case">
        </span>
      </div>
    </label>
  </template>
</div>

<div class="mb-4" data-controller="combobox">
  <label data-combobox-target="label" for="destination-select" class="block text-gray-700 text-sm font-bold mb-2">
    <span class="">Countries</span>
  </label>
  <div data-combobox-target="selected" class="mb-2">
    <label data-combobox-target="emptyBadge" class="px-2 py-1 relative inline-flex items-center rounded-full border border-dashed border-gray-400 bg-transparent" for="">
      <div class="absolute flex items-center h-5">
        <input class="border border-dashed border-gray-400 rounded" type="checkbox" value="" name="review[countries][]" id="" disabled>
      </div>
      <div class="pl-6 text-sm leading-5">
        <span class="font-medium text-gray-400 mb-0 normal-case">
          None selected
        </span>
      </div>
    </label>
  </div>
  <div class="block relative">
    <select id="destination-select" name="destination" data-action="combobox#chooseAndReset" class="appearance-none block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm placeholder-gray-400 focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm">
      <option value="">Select&hellip;</option>
      <option value="1" data-alt="AF">Afghanistan</option>
      <option value="2" data-alt="AX Aaland Aland">Åland Islands</option>
      <option value="3" data-alt="AL">Albania</option>
      <option value="4" data-alt="DZ">Algeria</option>
      <option value="5" data-alt="AS">American Samoa</option>
      <option value="6" data-alt="AD">Andorra</option>
      <option value="7" data-alt="AO">Angola</option>
      <option value="8" data-alt="AI">Anguilla</option>
      <option value="8" data-alt="AQ">Antarctica</option>
      <option value="10" data-alt="AG">Antigua And Barbuda</option>
      <option value="11" data-alt="AR">Argentina</option>
      <option value="12" data-alt="AM">Armenia</option>
      <option value="13" data-alt="AW">Aruba</option>
      <option value="14" data-alt="AU">Australia</option>
      <option value="15" data-alt="AT Österreich Osterreich Oesterreich ">Austria</option>
      <option value="16" data-alt="AZ">Azerbaijan</option>
      <option value="17" data-alt="BS">Bahamas</option>
      <option value="18" data-alt="BH">Bahrain</option>
      <option value="19" data-alt="BD">Bangladesh</option>
      <option value="20" data-alt="BB">Barbados</option>
      <option value="21" data-alt="BY">Belarus</option>
      <option value="22" data-alt="BE België Belgie Belgien Belgique">Belgium</option>
      <option value="23" data-alt="BZ">Belize</option>
      <option value="24" data-alt="BJ">Benin</option>
      <option value="25" data-alt="BM">Bermuda</option>
      <option value="26" data-alt="BT">Bhutan</option>
      <option value="27" data-alt="BO">Bolivia</option>
      <option value="28" data-alt="BQ">Bonaire, Sint Eustatius and Saba</option>
      <option value="29" data-alt="BA">Bosnia and Herzegovina</option>
      <option value="30" data-alt="BW">Botswana</option>
      <option value="31" data-alt="BV">Bouvet Island</option>
      <option value="32" data-alt="BR Brasil">Brazil</option>
      <option value="33" data-alt="IO">British Indian Ocean Territory</option>
      <option value="34" data-alt="BN">Brunei Darussalam</option>
      <option value="35" data-alt="BG">Bulgaria</option>
      <option value="36" data-alt="BF">Burkina Faso</option>
      <option value="37" data-alt="BI">Burundi</option>
      <option value="38" data-alt="KH">Cambodia</option>
      <option value="39" data-alt="CM">Cameroon</option>
      <option value="40" data-alt="CA">Canada</option>
      <option value="41" data-alt="CV">Cape Verde</option>
      <option value="42" data-alt="KY">Cayman Islands</option>
      <option value="43" data-alt="CF">Central African Republic</option>
      <option value="44" data-alt="TD">Chad</option>
      <option value="45" data-alt="CL">Chile</option>
      <option value="46" data-alt="CN Zhongguo Zhonghua Peoples Republic">China</option>
      <option value="47" data-alt="CX">Christmas Island</option>
      <option value="48" data-alt="CC">Cocos (Keeling) Islands</option>
      <option value="49" data-alt="CO">Colombia</option>
      <option value="50" data-alt="KM">Comoros</option>
      <option value="51" data-alt="CG">Congo</option>
      <option value="52" data-alt="CD">Congo, the Democratic Republic of the</option>
      <option value="53" data-alt="CK">Cook Islands</option>
      <option value="54" data-alt="CR">Costa Rica</option>
      <option value="55" data-alt="CI Cote dIvoire">Côte d'Ivoire</option>
      <option value="x1Croatia" data-alt="HR Hrvatska">Croatia</option>
      <option value="x1Cuba" data-alt="CU">Cuba</option>
      <option value="x1Curaçao" data-alt="CW Curacao">Curaçao</option>
      <option value="x1Cyprus" data-alt="CY">Cyprus</option>
      <option value="x1Czech Republic" data-alt="CZ Česká Ceska">Czech Republic</option>
      <option value="x1Denmark" data-alt="DK Danmark">Denmark</option>
      <option value="x1Djibouti" data-alt="DJ">Djibouti</option>
      <option value="x1Dominica" data-alt="DM">Dominica</option>
      <option value="x1Dominican Republic" data-alt="DO">Dominican Republic</option>
      <option value="x1Ecuador" data-alt="EC">Ecuador</option>
      <option value="x1Egypt" data-alt="EG">Egypt</option>
      <option value="x1El Salvador" data-alt="SV">El Salvador</option>
      <option value="x1Equatorial Guinea" data-alt="GQ">Equatorial Guinea</option>
      <option value="x1Eritrea" data-alt="ER">Eritrea</option>
      <option value="x1Estonia" data-alt="EE Eesti">Estonia</option>
      <option value="x1Ethiopia" data-alt="ET">Ethiopia</option>
      <option value="x1Falkland Islands (Malvinas)" data-alt="FK">Falkland Islands (Malvinas)</option>
      <option value="x1Faroe Islands" data-alt="FO Føroyar Færøerne">Faroe Islands</option>
      <option value="x1Fiji" data-alt="FJ">Fiji</option>
      <option value="x1Finland" data-alt="FI Suomi">Finland</option>
      <option value="x1France" data-alt="FR République française">France</option>
      <option value="x1French Guiana" data-alt="GF">French Guiana</option>
      <option value="x1French Polynesia" data-alt="PF">French Polynesia</option>
      <option value="x1French Southern Territories" data-alt="TF">French Southern Territories</option>
      <option value="x1Gabon" data-alt="GA">Gabon</option>
      <option value="x1Gambia" data-alt="GM">Gambia</option>
      <option value="x1Georgia" data-alt="GE">Georgia</option>
      <option value="x1Germany" data-alt="DE Bundesrepublik Deutschland">Germany</option>
      <option value="x1Ghana" data-alt="GH">Ghana</option>
      <option value="x1Gibraltar" data-alt="GI">Gibraltar</option>
      <option value="x1Greece" data-alt="GR">Greece</option>
      <option value="x1Greenland" data-alt="GL grønland">Greenland</option>
      <option value="x1Grenada" data-alt="GD">Grenada</option>
      <option value="x1Guadeloupe" data-alt="GP">Guadeloupe</option>
      <option value="x1Guam" data-alt="GU">Guam</option>
      <option value="x1Guatemala" data-alt="GT">Guatemala</option>
      <option value="x1Guernsey" data-alt="GG">Guernsey</option>
      <option value="x1Guinea" data-alt="GN">Guinea</option>
      <option value="x1Guinea-Bissau" data-alt="GW">Guinea-Bissau</option>
      <option value="x1Guyana" data-alt="GY">Guyana</option>
      <option value="x1Haiti" data-alt="HT">Haiti</option>
      <option value="x1Heard Island and McDonald Islands" data-alt="HM">Heard Island and McDonald Islands</option>
      <option value="x1Holy See (Vatican City State)" data-alt="VA">Holy See (Vatican City State)</option>    
      <option value="x1Honduras" data-alt="HN">Honduras</option>
      <option value="x1Hong Kong" data-alt="HK">Hong Kong</option>
      <option value="x1Hungary" data-alt="HU">Hungary</option>
      <option value="x1Iceland" data-alt="IS Island">Iceland</option>
      <option value="x1India" data-alt="IN">India</option>
      <option value="x1Indonesia" data-alt="ID">Indonesia</option>
      <option value="x1Iran, Islamic Republic of" data-alt="IR">Iran, Islamic Republic of</option>
      <option value="x1Iraq" data-alt="IQ">Iraq</option>
      <option value="x1Ireland" data-alt="IE Éire">Ireland</option>
      <option value="x1Isle of Man" data-alt="IM">Isle of Man</option>
      <option value="x1Israel" data-alt="IL">Israel</option>
      <option value="x1Italy" data-alt="IT Italia">Italy</option>
      <option value="x1Jamaica" data-alt="JM">Jamaica</option>
      <option value="x1Japan" data-alt="JP Nippon Nihon">Japan</option>
      <option value="x1Jersey" data-alt="JE">Jersey</option>
      <option value="x1Jordan" data-alt="JO">Jordan</option>
      <option value="x1Kazakhstan" data-alt="KZ">Kazakhstan</option>
      <option value="x1Kenya" data-alt="KE">Kenya</option>
      <option value="x1Kiribati" data-alt="KI">Kiribati</option>
      <option value="x1Korea, Democratic People's Republic of" data-alt="KP North Korea">Korea, Democratic People's Republic of</option>
      <option value="x1Korea, Republic of" data-alt="KR South Korea">Korea, Republic of</option>
      <option value="x1Kuwait" data-alt="KW">Kuwait</option>
      <option value="x1Kyrgyzstan" data-alt="KG">Kyrgyzstan</option>
      <option value="x1Lao People's Democratic Republic" data-alt="LA">Lao People's Democratic Republic</option>
      <option value="x1Latvia" data-alt="LV">Latvia</option>
      <option value="x1Lebanon" data-alt="LB">Lebanon</option>
      <option value="x1Lesotho" data-alt="LS">Lesotho</option>
      <option value="x1Liberia" data-alt="LR">Liberia</option>
      <option value="x1Libyan Arab Jamahiriya" data-alt="LY">Libyan Arab Jamahiriya</option>
      <option value="x1Liechtenstein" data-alt="LI">Liechtenstein</option>
      <option value="x1Lithuania" data-alt="LT">Lithuania</option>
      <option value="x1Luxembourg" data-alt="LU">Luxembourg</option>
      <option value="x1Macao" data-alt="MO">Macao</option>
      <option value="x1Macedonia, The Former Yugoslav Republic Of" data-alt="MK">Macedonia, The Former Yugoslav Republic Of</option>
      <option value="x1Madagascar" data-alt="MG">Madagascar</option>
      <option value="x1Malawi" data-alt="MW">Malawi</option>
      <option value="x1Malaysia" data-alt="MY">Malaysia</option>
      <option value="x1Maldives" data-alt="MV">Maldives</option>
      <option value="x1Mali" data-alt="ML">Mali</option>
      <option value="x1Malta" data-alt="MT">Malta</option>
      <option value="x1Marshall Islands" data-alt="MH">Marshall Islands</option>
      <option value="x1Martinique" data-alt="MQ">Martinique</option>
      <option value="x1Mauritania" data-alt="MR">Mauritania</option>
      <option value="x1Mauritius" data-alt="MU">Mauritius</option>
      <option value="x1Mayotte" data-alt="YT">Mayotte</option>
      <option value="x1Mexico" data-alt="MX Mexicanos">Mexico</option>
      <option value="x1Micronesia, Federated States of" data-alt="FM">Micronesia, Federated States of</option>
      <option value="x1Moldova, Republic of" data-alt="MD">Moldova, Republic of</option>
      <option value="x1Monaco" data-alt="MC">Monaco</option>
      <option value="x1Mongolia" data-alt="MN">Mongolia</option>
      <option value="x1Montenegro" data-alt="ME">Montenegro</option>
      <option value="x1Montserrat" data-alt="MS">Montserrat</option>
      <option value="x1Morocco" data-alt="MA">Morocco</option>
      <option value="x1Mozambique" data-alt="MZ">Mozambique</option>
      <option value="x1Myanmar" data-alt="MM">Myanmar</option>
      <option value="x1Namibia" data-alt="NA">Namibia</option>
      <option value="x1Nauru" data-alt="NR">Nauru</option>
      <option value="x1Nepal" data-alt="NP">Nepal</option>
      <option value="x1Netherlands" data-alt="NL Holland Nederland">Netherlands</option>
      <option value="x1New Caledonia" data-alt="NC">New Caledonia</option>
      <option value="x1New Zealand" data-alt="NZ">New Zealand</option>
      <option value="x1Nicaragua" data-alt="NI">Nicaragua</option>
      <option value="x1Niger" data-alt="NE">Niger</option>
      <option value="x1Nigeria" data-alt="NG">Nigeria</option>
      <option value="x1Niue" data-alt="NU">Niue</option>
      <option value="x1Norfolk Island" data-alt="NF">Norfolk Island</option>
      <option value="x1Northern Mariana Islands" data-alt="MP">Northern Mariana Islands</option>
      <option value="x1Norway" data-alt="NO Norge Noreg">Norway</option>
      <option value="x1Oman" data-alt="OM">Oman</option>
      <option value="x1Pakistan" data-alt="PK">Pakistan</option>
      <option value="x1Palau" data-alt="PW">Palau</option>
      <option value="x1Palestinian Territory, Occupied" data-alt="PS">Palestinian Territory, Occupied</option>
      <option value="x1Panama" data-alt="PA">Panama</option>
      <option value="x1Papua New Guinea" data-alt="PG">Papua New Guinea</option>
      <option value="x1Paraguay" data-alt="PY">Paraguay</option>
      <option value="x1Peru" data-alt="PE">Peru</option>
      <option value="x1Philippines" data-alt="PH">Philippines</option>
      <option value="x1Pitcairn" data-alt="PN">Pitcairn</option>
      <option value="x1Poland" data-alt="PL">Poland</option>
      <option value="x1Portugal" data-alt="PT">Portugal</option>
      <option value="x1Puerto Rico" data-alt="PR">Puerto Rico</option>
      <option value="x1Qatar" data-alt="QA">Qatar</option>
      <option value="x1Réunion" data-alt="RE Reunion">Réunion</option>
      <option value="x1Romania" data-alt="RO">Romania</option>
      <option value="x1Russian Federation" data-alt="RU Russia Rossiya">Russian Federation</option>
      <option value="x1Rwanda" data-alt="RW">Rwanda</option>
      <option value="x1Saint Barthélemy" data-alt="BL">Saint Barthélemy</option>
      <option value="x1Saint Helena" data-alt="SH">Saint Helena</option>
      <option value="x1Saint Kitts and Nevis" data-alt="KN">Saint Kitts and Nevis</option>
      <option value="x1Saint Lucia" data-alt="LC">Saint Lucia</option>
      <option value="x1Saint Martin (French Part)" data-alt="MF">Saint Martin (French Part)</option>
      <option value="x1Saint Pierre and Miquelon" data-alt="PM">Saint Pierre and Miquelon</option>
      <option value="x1Saint Vincent and the Grenadines" data-alt="VC">Saint Vincent and the Grenadines</option>
      <option value="x1Samoa" data-alt="WS">Samoa</option>
      <option value="x1San Marino" data-alt="SM">San Marino</option>
      <option value="x1Sao Tome and Principe" data-alt="ST">Sao Tome and Principe</option>
      <option value="x1Saudi Arabia" data-alt="SA">Saudi Arabia</option>
      <option value="x1Senegal" data-alt="SN">Senegal</option>
      <option value="x1Serbia" data-alt="RS">Serbia</option>
      <option value="x1Seychelles" data-alt="SC">Seychelles</option>
      <option value="x1Sierra Leone" data-alt="SL">Sierra Leone</option>
      <option value="x1Singapore" data-alt="SG">Singapore</option>
      <option value="x1Sint Maarten (Dutch Part)" data-alt="SX">Sint Maarten (Dutch Part)</option>
      <option value="x1Slovakia" data-alt="SK">Slovakia</option>
      <option value="x1Slovenia" data-alt="SI">Slovenia</option>
      <option value="x1Solomon Islands" data-alt="SB">Solomon Islands</option>
      <option value="x1Somalia" data-alt="SO">Somalia</option>
      <option value="x1South Africa" data-alt="ZA">South Africa</option>
      <option value="x1South Georgia and the South Sandwich Islands" data-alt="GS">South Georgia and the South Sandwich Islands</option>
      <option value="x1South Sudan" data-alt="SS">South Sudan</option>
      <option value="x1Spain" data-alt="ES España">Spain</option>
      <option value="x1Sri Lanka" data-alt="LK">Sri Lanka</option>
      <option value="x1Sudan" data-alt="SD">Sudan</option>
      <option value="x1Suriname" data-alt="SR">Suriname</option>
      <option value="x1Svalbard and Jan Mayen" data-alt="SJ">Svalbard and Jan Mayen</option>
      <option value="x1Swaziland" data-alt="SZ">Swaziland</option>
      <option value="x1Sweden" data-alt="SE Sverige">Sweden</option>
      <option value="x1Switzerland" data-alt="CH Swiss Confederation Schweiz Suisse Svizzera Svizra">Switzerland</option>
      <option value="x1Syrian Arab Republic" data-alt="SY Syria">Syrian Arab Republic</option>
      <option value="x1Taiwan, Province of China" data-alt="TW">Taiwan, Province of China</option>
      <option value="x1Tajikistan" data-alt="TJ">Tajikistan</option>
      <option value="x1Tanzania, United Republic of" data-alt="TZ">Tanzania, United Republic of</option>  
      <option value="x1Thailand" data-alt="TH">Thailand</option>
      <option value="x1Timor-Leste" data-alt="TL">Timor-Leste</option>
      <option value="x1Togo" data-alt="TG">Togo</option>
      <option value="x1Tokelau" data-alt="TK">Tokelau</option>
      <option value="x1Tonga" data-alt="TO">Tonga</option>
      <option value="x1Trinidad and Tobago" data-alt="TT">Trinidad and Tobago</option>
      <option value="x1Tunisia" data-alt="TN">Tunisia</option>
      <option value="x1Turkey" data-alt="TR Türkiye Turkiye">Turkey</option>
      <option value="x1Turkmenistan" data-alt="TM">Turkmenistan</option>
      <option value="x1Turks and Caicos Islands" data-alt="TC">Turks and Caicos Islands</option>
      <option value="x1Tuvalu" data-alt="TV">Tuvalu</option>
      <option value="x1Uganda" data-alt="UG">Uganda</option>
      <option value="x1Ukraine" data-alt="UA Ukrayina">Ukraine</option>
      <option value="x1United Arab Emirates" data-alt="AE UAE Emirates">United Arab Emirates</option>
      <option value="x1United Kingdom" data-alt="GB Great Britain England UK Wales Scotland Northern Ireland">United Kingdom</option>
      <option value="x1United States" data-alt="US USA United States of America">United States</option>
      <option value="x1United States Minor Outlying Islands" data-alt="UM">United States Minor Outlying Islands</option>
      <option value="x1Uruguay" data-alt="UY">Uruguay</option>
      <option value="x1Uzbekistan" data-alt="UZ">Uzbekistan</option>
      <option value="x1Vanuatu" data-alt="VU">Vanuatu</option>
      <option value="x1Venezuela" data-alt="VE">Venezuela</option>
      <option value="x1Vietnam" data-alt="VN">Vietnam</option>
      <option value="x1Virgin Islands, British" data-alt="VG">Virgin Islands, British</option>
      <option value="x1Virgin Islands, U.S." data-alt="VI">Virgin Islands, U.S.</option>
      <option value="x1Wallis and Futuna" data-alt="WF">Wallis and Futuna</option>
      <option value="x1Western Sahara" data-alt="EH">Western Sahara</option>
      <option value="x1Yemen" data-alt="YE">Yemen</option>
      <option value="x1Zambia" data-alt="ZM">Zambia</option>
      <option value="x1Zimbabwe" data-alt="ZW">Zimbabwe</option>
    </select>
  </div>
  
  <template data-combobox-target="template">
    <label data-combobox-target="badge" class="px-2 py-1 relative inline-flex items-center rounded-full border border-transparent bg-indigo-400 hover:border-indigo-600 cursor-pointer" for="">
      <div class="absolute flex items-center h-5">
        <input data-combobox-target="badgeCheckbox" class="focus:ring-indigo-500 h-4 w-4 text-indigo-600 border-gray-300 rounded" type="checkbox" value="" name="review[countries][]" id="" checked>
      </div>
      <div class="pl-6 text-sm leading-5">
        <span data-combobox-target="badgeText" class="font-medium text-white mb-0 normal-case">
        </span>
      </div>
    </label>
  </template>
</div>
!

CSS 

              
                body { margin: 2rem }
!

JS 

              
                const snakeCase = (string) => {
  return string.replace(/\d+/g, ' ')
    .split(/ |\B(?=[A-Z])/)
    .map((word) => word.toLowerCase())
    .join('_');
};

class ComboboxController extends Stimulus.Controller {
  static get targets() {
    return [ "input", "selected", "template", "label", "badge", "badgeCheckbox", "badgeText", "emptyBadge" ]
  }
  
  connect() {}
  
  chooseAndReset(evt) {
    if (!(evt instanceof InputEvent) || evt.inputType === 'insertReplacementText') {
			const value = evt.currentTarget.value
      const text = (evt.currentTarget.selectedOptions && evt.currentTarget.selectedOptions[0].text) || value
      const optionsList = evt.currentTarget.list || evt.currentTarget
      const optionIndex = Array.from(optionsList.children).findIndex(option => option.value == value)
      
      this._cloneTemplate(value, text, optionIndex)
      this._removeOptionFromList(optionsList, optionIndex)
      if (evt.currentTarget.tagName == "INPUT") {
        evt.currentTarget.value = ""
      }
      
      this.processed = true
		}
	}
  
  addAndReset(evt) {
    if (this.processed == true) {
      this.processed = false
      return
    }

    const value = evt.currentTarget.value
    const text = value
    const optionsList = evt.currentTarget.list || evt.currentTarget

    this._cloneTemplate(value, text)
    this._removeOptionFromList(optionsList, value)
    if (evt.currentTarget.tagName == "INPUT") {
      evt.currentTarget.value = ""
    }
    this.processed = false
	}
  
  showList(evt) {
    const original = this.inputTarget.value
    this.inputTarget.value = 'a'

    if (original == "") {
      console.log('showList', original, document.execCommand('delete'))
      document.execCommand('delete')
    } else {
      this.inputTarget.value = original
    }
  }
  
  removeItem(evt) {
    const checkboxElement = evt.currentTarget
    const labelElement = checkboxElement.labels[0]
    const optionsList = this.inputTarget.list || this.inputTarget
    const optionIndex = labelElement.getAttribute('data-option-index')
    const optionText = labelElement.querySelector("[data-combobox-target='badgeText']").textContent
    const optionValue = checkboxElement.value
    
    var option = document.createElement('option')
    var text = document.createTextNode(optionText)
    option.value = optionValue
    option.appendChild(text)
    optionsList.insertBefore(option, optionsList.children[optionIndex])
    
    labelElement.remove()
    if (this.selectedTarget.children.length == 1) {
      this.emptyBadgeTarget.style.display = "inline-flex"
    }
  }
  
	_cloneTemplate(value, text, optionIndex) {
		const clone = this.templateTarget.content.cloneNode(true)
		const idVal = snakeCase(text)

		clone.querySelector("[data-combobox-target='badge']").setAttribute('for', idVal)
    clone.querySelector("[data-combobox-target='badge']").setAttribute('data-option-index', optionIndex)
		clone.querySelector("[data-combobox-target='badgeCheckbox']").setAttribute('id', idVal)
		clone.querySelector("[data-combobox-target='badgeCheckbox']").setAttribute('value', value)
		clone.querySelector("[data-combobox-target='badgeText']").textContent = text
		this.selectedTarget.append(clone)
    if (this.hasEmptyBadgeTarget) {
      this.emptyBadgeTarget.style.display = "none"
    }
	}
	_removeOptionFromList(optionsList, optionIndex) {
		const selectedOption = optionsList.children[optionIndex]
		if (selectedOption) selectedOption.remove()
	}
}

const application = Stimulus.Application.start()
application.register('combobox', ComboboxController)
!
999px

Console