JSFiddle - React, Tailwind, and code Playground
HTML
<div id="box" class="glow"></div>
CSS
#box
{
height: 300px;
width: 100px;
background-image: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxyYWRpYWxHcmFkaWVudCBpZD0iZyI+PHN0b3Agb2Zmc2V0PSIwIiBzdG9wLWNvbG9yPSIjQ0UxQTFBIi8+PHN0b3Agb2Zmc2V0PSIxIiBzdG9wLWNvbG9yPSIjZmZmZmZmIi8+PC9yYWRpYWxHcmFkaWVudD48cmVjdCB4PSIwJSIgeT0iMCUiIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbGw9IiNmZmZmZmYiIC8+PHJlY3QgeD0iLTIwLjcxMDclIiB5PSItMjAuNzEwNyUiIHdpZHRoPSIxNDEuNDIxNCUiIGhlaWdodD0iMTQxLjQyMTQlIiBmaWxsPSJ1cmwoI2cpIiAvPjwvc3ZnPg==);
background-image: -webkit-gradient(radial, 50% 50%, 0, 50% 50%, 127, color-stop(0%, #CE1A1A), color-stop(100%, #ffffff));
background-image: -webkit-radial-gradient(center center, farthest-corner, #CE1A1A 0%, #ffffff 100%);
background-image: -moz-radial-gradient(center center, farthest-corner, #CE1A1A 0%, #ffffff 100%);
background-image: -ms-radial-gradient(center center, farthest-corner, #CE1A1A 0%, #ffffff 100%);
background-image: -o-radial-gradient(center center, farthest-corner, #CE1A1A 0%, #ffffff 100%);
background-image: radial-gradient(farthest-corner at center center, #CE1A1A 0%, #ffffff 100%);
}