<div class="spinner loading"></div>

.spinner.loading {
  padding: 50px;
  position: relative;
  text-align: center;
}

.spinner.loading:before {
  content: "";
  height: 30px;
  width: 30px;
  margin: -15px auto auto -15px;
  position: absolute;
  top: 50%;
  left: 50%;
  border-width: 8px;
  border-style: solid;
  border-color: #2180c0 #ccc #ccc;
}