JSFiddle - React, Tailwind, and code Playground

by petroveg

HTML

<div class="round a1"></div>
<div class="round a2"></div>

CSS

.round{
    display:inline-block;
    width:0;
    height:0;
    margin:100px;
}
.a1{
    box-shadow:0 0 100px 50px #f00;
    -webkit-box-shadow:0 0 100px 50px #f00;
}
.a2{
    -webkit-box-shadow:0 0 100px 50px #00f;
    box-shadow:0 0 100px 50px #00f;
}