Duck Hunt

<div></div>
<style>
  body {
    background: linear-gradient(
      #1e92ff 0 180px,
      #69d10a 180px 220px,
      #6f6100 220px
    );
    margin: 0;
  }
  div {
    width: 20px;
    height: 100px;
    background: #441a0a;
    translate: 50px 80px;
  }

  div::after {
    content: '';
    width: 40px;
    height: 40px;
    background: #69d10a;
    position: absolute;
    top: %;
    left: 50%;
    translate: -50% -50%;
    border-radius: 50%;
    color: #69d10a;
    box-shadow:
      -20px 20px,
      20px 20px,
      0 20px,
      270px 70px,
      270px 90px;
  }
</style>