JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

div{
  -webkit-filter: blur(5px);
  -moz-filter: blur(5px);
  -o-filter: blur(5px);
  -ms-filter: blur(5px);
  filter: blur(5px);
  width: 100px;
    height: 100px;
    background-color: #ccc;
}