JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="selectable">
    <li class="ui-widget-content done">Item 1</li>
    <li class="ui-widget-content done">Item 2</li>
    <li class="ui-widget-content">Item 3</li>
    <li class="ui-widget-content done">Item 4</li>
    <li class="ui-widget-content">Item 5</li>
    <li class="ui-widget-content done">Item 6</li>
    <li class="ui-widget-content done">Item 7</li>
</ul>

CSS

#selectable .ui-selecting { background: #FECA40; }
#selectable .ui-selectee{background: #efefef}
#selectable .ui-selected { background: #F39814; color: white; }
#selectable { list-style-type: none; margin: 0; padding: 0; width: 60%; }
#selectable li { margin: 3px; padding: 0.4em; font-size: 1.4em; height: 18px; background:#515151;}

JavaScript

$(function() {
    $( "#selectable" ).selectable({
        filter:'li.done',
        stop: function(event,ui){
          alert("selecting done");
        }
    });
});