.spinner.loading {
    padding: 50px;

    text-align: center;
    position: absolute;
}

.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;
    border-radius: 100%;
    animation: rotation .7s infinite linear;
}

@keyframes rotation {
    from {
        transform: rotate(0deg);
    } to {
          transform: rotate(359deg);
      }
}