.circulo{width:40vh;height:40vh;border:1px solid #042b4f;border-radius:50%;position:relative;margin:20px}.circulo-negro{width:30px;height:30px;background-color:#172b4d;border-radius:50%;position:absolute;bottom:0;right:1rem;transform:translate(-50%,-50%);display:flex;justify-content:center;align-items:center}