364861-1.html
<!DOCTYPE html>
<html>
<body>
<div style="background: black;
background-clip: padding-box;
width: 400px;
padding: 0;
height: 300px;
border: 100px solid rgba(255, 255, 0, 0.5);
border-radius: 40.0%">
</div>
</body>
</html>
