.loading{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 999;
  .cover{
    width: 100%;
    height: 100%;
    background: #333;
    opacity: .6;
    filter:alpha(opacity=60);
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(opacity=60);";
  }
  .info{
    position: absolute;
    top: 40%;
    left: 45%;//calc(50% - 50px);
    text-align: center;
  }
  p{
    color: #fff;
  }
}