JSFiddle - React, Tailwind, and code Playground

by jessekinsman

HTML

<div class="mask"></div>
<div class="loading"></div>

CSS

*, ::after, ::before {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
}
body {
    position: relative;
    padding: 0;
    margin: 0;
    height: 100%;
}
.mask {
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.15);
    z-index: 1;
    display: block;
}

.loading {
    
    position: relative;
    font-size: 100px;
    width: 1em;
    height: 1em;
    margin: 100px auto;
    border-radius: 50%;
    background: #123456;
    //box-shadow: inset 0 0 0 .12em rgba(0,0,0,0.2), 0 0 0 .12em rgba(255,255,255,0.1);
    background:
        -webkit-linear-gradient(#fff 50%, #000 50%),
        -webkit-linear-gradient(#000 50%, #fff 50%);
    background:
        -moz-linear-gradient(#ea2d0e 50%, #ffdd72 50%),
        -moz-linear-gradient(#ffdd72 50%, #ea2d0e 50%);
    background:
        -ms-linear-gradient(#ea2d0e 50%, #ffdd72 50%),
        -ms-linear-gradient(#ffdd72 50%, #ea2d0e 50%);
    background:
        -o-linear-gradient(#ea2d0e 50%, #ffdd72 50%),
        -o-linear-gradient(#ffdd72 50%, #ea2d0e 50%);
    background:
        linear-gradient(#ea2d0e 50%, #ffdd72 50%),
        linear-gradient(#ffdd72 50%, #ea2d0e 50%);
    background-size: 50% 100%, 50% 100%;
    background-position: 0 0, 100% 0;
    background-repeat: no-repeat;
    opacity: 0.7;
    //-webkit-animation: mask 800ms linear infinite;
    -moz-animation: mask 3s infinite alternate;
    -ms-animation: mask 3s infinite alternate;
    -o-animation: mask 3s infinite alternate;
    animation: mask 3s infinite alternate;
}

/*.loading:after {
	content: "";
	position: absolute;
	border: .12em solid rgba(255,255,255,0.3);
	position: absolute;
	top: 25%;
	left: 25%;
	width: 50%;
	height: 50%;
	border-radius: inherit;
}*/

@-webkit-keyframes mask {
    0% {-webkit-transform: rotate(0deg); }
    100%  { -webkit-transform: rotate(360deg); }
}

@-moz-keyframes mask {
    25%  { -moz-transform: rotate(270deg); }
    50%  { -moz-transform: rotate( 90deg); }
    75%  {...