.loading{
    background-color: #fff;
    width: 100%;
    text-align: center;
    padding: 14% 0;
    opacity: 0.8;
    position: absolute;
    z-index: 9999;
    vertical-align: middle;
    top: 0;
    height: 100%;
    bottom: 0;
  }  
  
.loading {
    position: fixed;
    padding: 50% 0 0 0;
}

.loading {
    position: fixed;
    padding:10% 0 0 0;
}

.img-loading{
    display:block;
    margin:auto;
    width: 30%;
    }