"MultiSelect"
Bootstrap 4.1.1 Snippet by coleenikk

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<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <head> <script src="https://cdnjs.cloudflare.com/ajax/libs/slim-select/1.18.10/slimselect.min.js"></script> <link href="https://cdnjs.cloudflare.com/ajax/libs/slim-select/1.18.10/slimselect.min.css" rel="stylesheet"></link> </head> <select id="demo" multiple> <option value="value 1">JavaScript</option> <option value="value 2">CSS3</option> <option value="value 3">HTML5</option> </select>
.ss-main{ position:relative; display:inline-block; user-select:none; color:#666; width:100% } .ss-main .ss-single-selected{ display:flex; cursor:pointer; width:100%; height:30px; padding:6px; border:1px solid #dcdee2; border-radius:4px; background-color:#fff; outline:0; box-sizing:border-box; transition:background-color .3s } .ss-main .ss-single-selected.ss-disabled{ background-color:#dcdee2; cursor:not-allowed } .ss-main .ss-single-selected.ss-open-above{ border-top-left-radius:0; border-top-right-radius:0 } .ss-main .ss-single-selected.ss-open-below{ border-bottom-left-radius:0; border-bottom-right-radius:0 } .ss-main .ss-single-selected .placeholder{ flex:1 1 100%; text-align:left; width:calc(100% - 30px); line-height:1em; -webkit-user-select:none; -moz-user-select:none; -ms-user-select:none; user-select:none } .ss-main .ss-single-selected .placeholder,.ss-main .ss-single-selected .placeholder *{ display:flex; align-items:center; overflow:hidden; text-overflow:ellipsis; white-space:nowrap } .ss-main .ss-single-selected .placeholder *{ width:auto } .ss-main .ss-single-selected .placeholder .ss-disabled{ cursor:pointer; color:#8a8a8a } .ss-main .ss-single-selected .ss-deselect{ display:flex; align-items:center; justify-content:flex-end; flex:0 1 auto; margin:0 6px; font-weight:700 } .ss-main .ss-single-selected .ss-deselect.ss-hide{ display:none } .ss-main .ss-single-selected .ss-arrow{ display:flex; align-items:center; justify-content:flex-end; flex:0 1 auto; margin:0 6px } .ss-main .ss-single-selected .ss-arrow span{ border:solid #666; border-width:0 2px 2px 0; display:inline-block; padding:3px; transition:transform .2s,margin .2s } .ss-main .ss-single-selected .ss-arrow span.arrow-up{ transform:rotate(-135deg); margin:3px 0 0 } .ss-main .ss-single-selected .ss-arrow span.arrow-down{ transform:rotate(45deg); margin:-3px 0 0 } .ss-main .ss-multi-selected{ display:flex; flex-direction:row; cursor:pointer; min-height:30px; width:100%; padding:0 0 0 3px; border:1px solid #dcdee2; border-radius:4px; background-color:#fff; outline:0; box-sizing:border-box; transition:background-color .3s } .ss-main .ss-multi-selected.ss-disabled{ background-color:#dcdee2; cursor:not-allowed } .ss-main .ss-multi-selected.ss-disabled .ss-values .ss-disabled{ color:#666 } .ss-main .ss-multi-selected.ss-disabled .ss-values .ss-value .ss-value-delete{ cursor:not-allowed } .ss-main .ss-multi-selected.ss-open-above{ border-top-left-radius:0; border-top-right-radius:0 } .ss-main .ss-multi-selected.ss-open-below{ border-bottom-left-radius:0; border-bottom-right-radius:0 } .ss-main .ss-multi-selected .ss-values{ display:flex; flex-wrap:wrap; justify-content:flex-start; flex:1 1 100%; width:calc(100% - 30px) } .ss-main .ss-multi-selected .ss-values .ss-disabled{ display:flex; padding:4px 5px; margin:2px 0; line-height:1em; align-items:center; width:100%; color:#8a8a8a; overflow:hidden; text-overflow:ellipsis; white-space:nowrap } @keyframes scaleIn{ 0%{ transform:scale(0); opacity:0 } to{ transform:scale(1); opacity:1 } } @keyframes scaleOut{ 0%{ transform:scale(1); opacity:1 } to{ transform:scale(0); opacity:0 } } .ss-main .ss-multi-selected .ss-values .ss-value{ display:flex; user-select:none; align-items:center; font-size:12px; padding:3px 5px; margin:3px 5px 3px 0; color:#fff; background-color:#5897fb; border-radius:4px; animation-name:scaleIn; animation-duration:.2s; animation-timing-function:ease-out; animation-fill-mode:both } .ss-main .ss-multi-selected .ss-values .ss-value.ss-out{ animation-name:scaleOut; animation-duration:.2s; animation-timing-function:ease-out } .ss-main .ss-multi-selected .ss-values .ss-value .ss-value-delete{ margin:0 0 0 5px; cursor:pointer } .ss-main .ss-multi-selected .ss-add{ display:flex; flex:0 1 3px; margin:9px 12px 0 5px } .ss-main .ss-multi-selected .ss-add .ss-plus{ display:flex; justify-content:center; align-items:center; background:#666; position:relative; height:10px; width:2px; transition:transform .2s } .ss-main .ss-multi-selected .ss-add .ss-plus:after{ background:#666; content:""; position:absolute; height:2px; width:10px; left:-4px; top:4px } .ss-main .ss-multi-selected .ss-add .ss-plus.ss-cross{ transform:rotate(45deg) } .ss-main .ss-content{ position:absolute; width:100%; margin:-1px 0 0; box-sizing:border-box; border:1px solid #dcdee2; z-index:1010; background-color:#fff; transform-origin:center top; transition:transform .2s,opacity .2s; opacity:0; transform:scaleY(0) } .ss-main .ss-content.ss-open{ display:block; opacity:1; transform:scaleY(1) } .ss-main .ss-content .ss-search{ display:flex; flex-direction:row; padding:8px 8px 6px } .ss-main .ss-content .ss-search.ss-hide,.ss-main .ss-content .ss-search.ss-hide input{ height:0; opacity:0; padding:0; margin:0 } .ss-main .ss-content .ss-search input{ display:inline-flex; font-size:inherit; line-height:inherit; flex:1 1 auto; width:100%; min-width:0; height:30px; padding:6px 8px; margin:0; border:1px solid #dcdee2; border-radius:4px; background-color:#fff; outline:0; text-align:left; box-sizing:border-box; -webkit-box-sizing:border-box; -webkit-appearance:textfield } .ss-main .ss-content .ss-search input::placeholder{ color:#bdbdbd; vertical-align:middle } .ss-main .ss-content .ss-search input:focus{ box-shadow:0 0 5px #5897fb } .ss-main .ss-content .ss-search .ss-addable{ display:inline-flex; justify-content:center; align-items:center; cursor:pointer; font-size:22px; font-weight:700; flex:0 0 30px; height:30px; margin:0 0 0 8px; border:1px solid #dcdee2; border-radius:4px; box-sizing:border-box } .ss-main .ss-content .ss-addable{ padding-top:0 } .ss-main .ss-content .ss-list{ max-height:200px; overflow-x:hidden; overflow-y:auto; text-align:left } .ss-main .ss-content .ss-list .ss-optgroup .ss-optgroup-label{ padding:6px 10px; font-weight:700 } .ss-main .ss-content .ss-list .ss-optgroup .ss-option{ padding:6px 6px 6px 25px } .ss-main .ss-content .ss-list .ss-optgroup-label-selectable{ cursor:pointer } .ss-main .ss-content .ss-list .ss-optgroup-label-selectable:hover{ color:#fff; background-color:#5897fb } .ss-main .ss-content .ss-list .ss-option{ padding:6px 10px; cursor:pointer; user-select:none } .ss-main .ss-content .ss-list .ss-option *{ display:inline-block } .ss-main .ss-content .ss-list .ss-option.ss-highlighted,.ss-main .ss-content .ss-list .ss-option:hover{ color:#fff; background-color:#5897fb } .ss-main .ss-content .ss-list .ss-option.ss-disabled{ cursor:default; color:#bdbdbd; background-color:#fff } .ss-main .ss-content .ss-list .ss-option.ss-hide{ display:none } .ss-main .ss-content .ss-list .ss-option .ss-search-highlight{ background-color:rgba(255,247,0,.38) }
$(document).ready(function() { var x = new SlimSelect({ select: '#demo' }); });

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Multiselect with icons

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