Matrix

<div></div>

<style>
  body {
    background: #5c434c;
    margin: 0;
  }

  div {
    background: #f09462;
    height: 80px;
    width: 80px;
    position: relative;
    left: 10px;
    top: 10px;
    border-radius: 100% 0 0 0;
    box-shadow:
      100px 0 #f5d6b4,
      200px 0 #f09462,
      0 100px #f5d6b4,
      300px 0#F5D6B4,
      100px 100px #f09462,
      200px 100px #f5d6b4,
      300px 100px #f09462,
      0 200px #f09462,
      100px 200px #f5d6b4,
      200px 200px #f09462,
      300px 200px #f5d6b4;
  }
</style>