3 - Push Button

<p>
<style>
  html {
    background: #6592CF;
  }
  body {
    margin: 75px 50px;
    background: #243D83;
  }
  p {
    margin: 0 75px;
    border: solid 50px #243D83;
    box-shadow: 0 0 0 50px #6592CF;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    background: #EEB850;
  }
</style>