  .sample-show-hide {
    -webkit-transition:all linear 0.5s;
    transition:all linear 0.5s;
  }

  .sample-show-hide.ng-hide {
    opacity:0;
  }

  #spinner {  
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    z-index:1000;
    background-color:#706570;
    opacity: .8;
 }

.ajax-loader {
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -32px; /* -1 * image width / 2 */
    margin-top: -32px;  /* -1 * image height / 2 */
    display: block;     
}