<!DOCTYPE html>
<html>
<head>
  <style type="text/css" media="screen">
    .box {
      position: relative;
      width: 200px;
      height: 160px;
      margin: 10px;
      display: inline-block;
      border: 1px solid black;
    }
    
    .rounded {
      border-radius: 20px;
      border-top-left-radius: 50px;
      border-bottom-right-radius: 80px;
    }
  </style>
</head>
<body>
  
  <div class="box" style="box-shadow: 0 0 20px rgba(0, 0, 0, 0.6) inset"></div>
  <div class="box" style="box-shadow: 0 100px 2px rgba(0, 0, 0, 0.6) inset"></div>
  <div class="box" style="box-shadow: 20px 20px 20px rgba(0, 0, 0, 0.6) inset"></div><br>
  <div class="box" style="box-shadow: 0 0 2px 10px rgba(0, 0, 0, 0.6) inset"></div>
  <div class="box" style="box-shadow: 0 20px 20px 40px rgba(0, 0, 0, 0.6) inset"></div>
  <div class="box" style="box-shadow: 100px 100px 2px -50px rgba(0, 0, 0, 0.6) inset"></div><br>
  <div class="box" style="box-shadow: 100px 100px 20px 10px rgba(0, 0, 0, 0.6) inset"></div>
  <div class="rounded box" style="box-shadow: 10px 10px 3px 15px rgba(0, 0, 0, 0.6) inset"></div>
  <div class="rounded box" style="box-shadow: 0 0 3px 5px rgba(0, 0, 0, 0.6) inset"></div>


</body>
</html>
