JSFiddle - React, Tailwind, and code Playground
by antouank
HTML
<div id='logo'></div>
CSS
#logo {
width: 300px;
height: 300px;
background: -moz-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.01) 1%, rgba(0, 0, 0, 1) 100%);
/* FF3.6+ */
background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, rgba(0, 0, 0, 0)), color-stop(1%, rgba(0, 0, 0, 0.01)), color-stop(100%, rgba(0, 0, 0, 1)));
/* Chrome,Safari4+ */
background: -webkit-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.01) 1%, rgba(0, 0, 0, 1) 100%);
/* Chrome10+,Safari5.1+ */
background: -o-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.01) 1%, rgba(0, 0, 0, 1) 100%);
/* Opera 12+ */
background: -ms-radial-gradient(center, ellipse cover, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.01) 1%, rgba(0, 0, 0, 1) 100%);
/* IE10+ */
background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.01) 1%, rgba(0, 0, 0, 1) 100%);
/* W3C */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00000000', endColorstr='#000000', GradientType=1);
/* IE6-9 fallback on horizontal gradient */
}