cssbattle40

<i class="t a"></i>
<i class="t b"></i>
<style>
  * {background:#6592CF}
  .t {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .a {
    width: 200px;
    height: 200px;
    background: #243D83;
    border-radius: 0 50% 50%;
  }
  .a::after {
    content: "";
    position: absolute;
    width: 50px;
    height: 100px;
    top: 0;
    left: 50px;
    background: #6592CF;
  }
  .b {
    width: 100px;
    height: 100px;
    border-radius: 50%;
  }
</style>