The first commented line is your dabblet’s title
{"view":"split-vertical","fontsize":"100","seethrough":"","prefixfree":"1","page":"css"}
// alert('Hello world!');
<!-- content to be placed inside <body>…</body> -->
<div>
<h1>this is a test</h1>
<p>this is something else</p>
</div>
/**
* The first commented line is your dabblet’s title
*/
div{
width: 500px;
height:800px;
position: relative;
margin: 150px 0 0 250px;
z-index: 51;
}
div:after{
content: ' ';
display: block;
position: absolute;
background: yellow;
width: 500px;
height:800px;
z-index: 0;
margin: -150px 0;
border-radius:100px;
transform: rotate(-60deg);
}