JSFiddle - React, Tailwind, and code Playground
by ryanbrill
HTML
<div><span>test</span></div>
CSS
div {
margin: 50px;
height: 100px;
width: 50px;
overflow: hidden;
position: relative;
}
span {
position: absolute;
left: 20px;
display: block;
height: 100px;
width: 100px;
background: #ccc;
-moz-transform: rotate(45deg);
-webkit-transform: rotate(45deg);
-moz-border-radius: 10px;
background: -moz-linear-gradient(135deg, #ff0000 0%, #fff 50%, #000 51%, #ff0000 100%);
background: -webkit-gradient(linear, left top, right bottom, color-stop(0%,#1E5799), color-stop(51%,#04160A), color-stop(100%,#7db9e8));
}