<div class="circle"></div>
.circle {
background: #456BD9;
border: 0.1875em solid #0F1C3F;
border-radius: 50%;
box-shadow: 0.375em 0.375em 0 0 rgba(15, 28, 63, 0.125);
height: 5em;
width: 5em;
}
This Pen doesn't use any external JavaScript resources.