.xmiddle {
    margin: 0;
    position: absolute;
    display: block;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    overflow-x: hidden;
    overflow-y: hidden;
  }

  .x30 {
    width:32px;
    height:32px;
  }