Target #13 (Totally_Triangle)

<div></div>
<style>
  body{
    background:#0B2429;
    margin:0px;
  }
  div {
    width: 100px;
    height: 100px;
    background:#F3AC3C;
    border:100px solid #F3AC3C;
    transform:rotate(-45deg);
    position:absolute;
    left:-150px;
    top:-220px;
  }
</style>