JSFiddle - React, Tailwind, and code Playground

HTML

<div class="draggable" draggable="true" ondragstart="startDrag(event)">

</div>

CSS

.draggable {
  border-radius: 4px;
  background: #CC0000;
  width: 40px;
  height: 40px;
}

JavaScript

function startDrag() {
  // hide initial element
}