JSFiddle - React, Tailwind, and code Playground

by Vignesh Gopalakrishnan

HTML

<div class="blinkRed" style="background:#FF1C00;height:25px; width:25px; border-radius:100%;"></div>

<div class="blinkGreen" style="background:#00FF00;height:25px; width:25px; border-radius:100%;"></div>

CSS

@keyframes blinkRed {
    0% { box-shadow: 0 0 15px #FF6961; }
    50% { box-shadow: none; }
    100% { box-shadow: 0 0 15px #FF0000; }
}

@-webkit-keyframes blinkRed {
    0% { box-shadow: 0 0 15px #FF6961; }
    50% { box-shadow: 0 0 0; }
    100% { box-shadow: 0 0 15px #FF0000; }
}

.blinkRed {
    -webkit-animation: blinkRed 1.0s linear infinite;
    -moz-animation: blinkRed 1.0s linear infinite;
    -ms-animation: blinkRed 1.0s linear infinite;
    -o-animation: blinkRed 1.0s linear infinite;
    animation: blinkRed 1.0s linear infinite;
}
@keyframes blinkGreen {
    0% { box-shadow: 0 0 15px #00FF00; }
    50% { box-shadow: none; }
    100% { box-shadow: 0 0 15px #088A08; }
}

@-webkit-keyframes blinkGreen {
    0% { box-shadow: 0 0 15px #00FF00; }
    50% { box-shadow: 0 0 0; }
    100% { box-shadow: 0 0 15px #088A08; }
}

.blinkGreen {
    -webkit-animation: blinkGreen 1.0s linear infinite;
    -moz-animation: blinkGreen 1.0s linear infinite;
    -ms-animation: blinkGreen 1.0s linear infinite;
    -o-animation: blinkGreen 1.0s linear infinite;
    animation: blinkGreen 1.0s linear infinite;
}