JSFiddle - React, Tailwind, and code Playground

by Harvey_He

HTML

<div id="demo"></div>

CSS

#demo {
    border:2px solid #000;
    height:100px;
    width:100px;
} 
#demo:after {
    content:'';
    width:14px;
    height:14px;
    position:absolute;
    border-top:2px solid #000;
    border-right:2px solid #000;
    left:103px;
    top:20px;
    background:#fff;
    -webkit-transform: rotate(45deg);
    -moz-transform:    rotate(45deg);
    -ms-transform:     rotate(45deg);
    -o-transform:      rotate(45deg);
}