JSFiddle - React, Tailwind, and code Playground

by JohnFish

HTML

<h1>Pulse!</h1>

CSS

h1 {
    color: #444;
    font-size: 30px;
    font-family: arial, sans-serif;
    margin: 50px;
    -webkit-animation: pulse 2s infinite linear;
}
@-webkit-keyframes pulse {
    0% { text-shadow: 0 0 0px; }
50% { text-shadow: 0 0 9px green; }
100% { text-shadow: 0 0 0px; }
}