cssbattle4

<div class="r">
  <div class="t a"></div>
  <div class="t b"></div>
  <div class="t c"></div>
</div>
<style>
  body {
    background: #62306D;
    margin: 0;
  }
  .r {
    display: flex;
    height: 200px;
    justify-content: center;
    margin-top: 50px;
  }
  .t {
    width: 100px;
    height: 100px;
    background: #F7EC7D;
  }
  .a {
    border-radius: 0 0 50% 50%;
    align-self: flex-end;
  }
  .b {
    border-radius: 50% 50% 0 0;
  }
  .c {
    border-radius: 0 0 50% 50%;
    align-self: flex-end;
  }
</style>