.loading {
     position: fixed;
    top: 40%;
    left: 50%;
    margin-top: -50px;
    margin-left: -100px;
   /* background-repeat: no-repeat;
    background-position: center center;*/
    z-index: 50;
  }

  .sweet-alert{
   z-index: 20;
  }

  .visible{
 z-index: 20; 
  }

  .showSweetAlert{
     z-index: 20;
  }

  .sweet-overlay{
    z-index: 19;
  }