JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="moveMe" id="ul1">
    <li>one</li>
    <li>two</li>
    <li>three</li>
</ul>
<ul class="moveMe" id="ul2">
    <li></li>
</ul>

CSS

.justMoved {
    color: green;
}

JavaScript

$(".moveMe").sortable({
         connectWith: ".moveMe",
         stop: function (event, ui) {
             ui.item.addClass('justMoved');

         }
     }).disableSelection();