Third Eye

<div></div>
<div></div>
<div></div>
<style>
  body {
    background: #e3516e;
    display: grid;
    margin: 0;
  }
  div {
    width: 75px;
    height: 75px;
    background: #d9d9d9;
    border-radius: 0 0 75px 0;
  }

  div:nth-child(2) {
    place-self: center;
    border-radius: 100px 0;
    rotate: 45deg;
    width: 100px;
    height: 100px;
  }

  div:nth-child(3) {
    place-self: end;
    border-radius: 75px 0 0 0;
  }
</style>