CSS
.html {
background:
linear-gradient(180deg, rgba(255, 0, 102, 0) 20%, rgba(255, 0, 102, .1) 20%, rgba(255, 0, 102, .1) 40%, rgba(255, 0, 102, .2) 40%, rgba(255, 0, 102, .2) 60%, rgba(255, 0, 102, .4) 60%, rgba(255, 0, 102, .4) 80%, rgba(255, 0, 102, .6) 80%),
linear-gradient(-90deg, rgba(255, 0, 102, 0) 20%, rgba(255, 0, 102, .1) 20%, rgba(255, 0, 102, .1) 40%, rgba(255, 0, 102, .2) 40%, rgba(255, 0, 102, .2) 60%, rgba(255, 0, 102, .4) 60%, rgba(255, 0, 102, .4) 80%, rgba(255, 0, 102, .6) 80%);
background-color: #fc0;
background-size: 100% 100%;
min-height: 100%;
}
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