<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
div {
height: 300px;
background: yellow;
position: relative;
}
div:before {
content: '';
position: absolute;
top: 0;
right: 0;
border-top: 80px solid white;
border-left: 80px solid yellow;
width: 0;
}
</style>
</head>
<body>
<div>We can create a cut corner effect with the help of CSS pseudo-elements, in the case where the parent element has a solid color background.</div>
</body>
</html>