style.css

.bubble {
  left: 0px;
  position: absolute;
  text-transform: uppercase;
  top: 20px;
  z-index: 9;
}

.bubble .inside {
  background-color: #e74c3c;
  border-radius: 999px;
  display: table;
  height: 42px;
  position: relative;
  width: 42px;
  -webkit-border-radius: 999px;
}

.bubble .inside .inside-text {
  color: #fff;
  display: table-cell;
  font-size: 14px;
  font-weight: bold;
  line-height: 14px;
  text-align: center;
  vertical-align: middle;
}