circle.css

.circle {
  background: whiteSmoke;
  border: 1px solid #CCCCCC;
  -moz-border-radius: 20px;
  -webkit-border-radius: 20px;
  display: block;
  float: left;
  height: 40px;
  margin: 5px 0 5px -50px;
  position: relative;
  width: 40px;

  span {
    display: inline-block;
    color: #333333;
    height: 20px;
    left: 10px;
    position: absolute;
    text-align: center;
    top: 10px;
    width: 20px;
  }
}