<!DOCTYPE html>
<!--
 | Setting 4 values for the border radius for a box with a background color,
 | a border and an inset shadow.
 | Note that this will not look the exact same in Chrome since Cobalt
 | normalizes opposing corners and Chrome does not.
 |   https://www.w3.org/TR/css3-background/#border-radius
 -->
<html>
<head>
  <style>
    div {
      border: 25px solid rgb(255,192,203);
      background-color: rgb(176,176,176);
      border-radius: 50px 100px 0px 75px;
      box-shadow: 10px 10px #FF7F50 inset;
      height: 200px;
      width: 100px;
    }
  </style>
</head>
<body>
  <div></div>
</body>
</html>