.spinner{display:none;height:18px;position:relative;vertical-align:middle;width:18px}.spinner:after{animation:spin .7s linear infinite;border:2px solid #fff;border-radius:50%;border-top-color:transparent;box-sizing:border-box;content:"";display:block;height:18px;margin:0;width:18px}@keyframes spin{to{transform:rotate(1turn)}}