<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
div{
border: 1px solid black;
width:150px;
height: 150px;
line-height: 150px;
text-align:center;
border-radius: 50%;
}
</style>
</head>
<body>
<h1>CSS border-radius Property</h1>
<div>
border-radius: 50%;
</div> </body>
</html>