JSFiddle - React, Tailwind, and code Playground

HTML

<div id="pan">
  <div id="rec"></div>
</div>

CSS

#pan {
    width:500px;
    height:500px;
    position:relative;
    background:#aaa;
}

#rec {
    width:100px;
    height:100px;
    position:absolute;
    top:250px;
    left:250px;
    background:#fff;
    -webkit-transition:500ms cubic-bezier(0.785, 0.135, 0.000, 0.940)
}

#rec:hover{
    /*-webkit-transform:scale(3.5,1);*/
    width:300px;
    left:150px;
    -webkit-transition:500ms linear; 
    -webkit-border-radius:35px;
}