<html>
<head>
<style>
div { box-sizing: border-box;
width: 60px;
height: 20px;
border: 2px solid black;
background: green;
position: absolute;
top: 12px;
left: 12px;
border-radius: 4px 16px 4px 16px;
}
</style>
</head>
<body>
<div></div>
</body>
</html>