A spinning circle example

  <style>
  #MyWaitingAnimatedIcon {
    border: 6px solid #f3f3f3;
    border-radius: 50%;
    border-top: 6px solid #777777;
    width: 40px;
    height: 40px;
    -webkit-animation: animated_icon_spin 2s linear infinite; /* Safari */
    animation: animated_icon_spin 2s linear infinite;

    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
  }
  @-webkit-keyframes animated_icon_spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
  }
  @keyframes animated_icon_spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }
  </style>

  <div id="MyWaitingAnimatedIcon"></div>