CSS - Circle with Ring
HTML
<div class="ring"></div>
CSS
.ring {
background: red;
width: 52px;
height: 52px;
border-radius: 50%;
position: relative;
}
.ring:before {
border-radius: 50%;
border: 5px solid #000;
content: "";
position: absolute;
top: -7px;
bottom: -7px;
left: -7px;
right: -7px;
}