CSSBattle 1.3: Push Button Solution

1<div class="rect"></div>
2<div class="circle"></div>
3
4<style>
5  body {
6    background: #6592cf;
7    margin: 0;
8  }
9  div {
10    position: absolute;
11    top: 50%;
12    left: 50%;
13    transform: translate(-50%, -50%);
14  }
15  .rect {
16    height: 50vh;
17    width: 75vw;
18    background: #243d83;
19  }
20  .circle {
21    height: 3.12rem;
22    width: 3.12rem;
23    background-color: #eeb850;
24    border-radius: 50%;
25    box-shadow: 0 0 0 3.12rem #243d83, 0 0 0 6.24rem #6592cf;
26  }
27</style>