<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
div {
width: 200px;
min-height: 200px;
-webkit-clip-path: polygon(0 0, 0 100%, 100% 100%, 100% 25%, 75% 0);
clip-path: polygon(0 0, 0 100%, 100% 100%, 100% 25%, 75% 0);
background: green;
}
</style>
</head>
<body>
<div>
<p>Cut corner effect.</p>
</div>
</body>
</html>