JSFiddle - React, Tailwind, and code Playground
CSS
body {background: #000000; /* Old browsers */
background: -moz-linear-gradient(left, #000000 0%, #000000 50%, #ffffff 50%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#000000), color-stop(50%,#000000), color-stop(50%,#ffffff)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, #000000 0%,#000000 50%,#ffffff 50%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, #000000 0%,#000000 50%,#ffffff 50%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, #000000 0%,#000000 50%,#ffffff 50%); /* IE10+ */
background: linear-gradient(to right, #000000 0%,#000000 50%,#ffffff 50%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#ffffff',GradientType=1 ); /* IE6-9 */
}