JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css">
<div id='a'></div>

CSS

#a {
width: 100px;
height: 100px;
   border: 1px sloid blue;
    background-color: red;
   
}

/** THIS CHANGES THE RESIZE HANDLER **/
#a .ui-resizable-se {
  background: black;
  width:30px;
height: 30px;    
}

JavaScript

$(function() {
        $( "#a" ).resizable();
    });