.ubind-material-preloader {
  display: block;
  margin: 0 auto;
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,.3);
  border-radius: 50%;
  border-top-color: #ccc;
  animation: spin 1s ease-in-out infinite;
  -webkit-animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { -webkit-transform: rotate(360deg); }
}
@-webkit-keyframes spin {
  to { -webkit-transform: rotate(360deg); }
}