.loading-image {
    position: fixed; 
    z-index: 10;
      width: 90px;
    height: 90px;
}

.loader {
    display: none;
    width: 500px;
    height: 500px;
    position: fixed;
    top: 45%;
    left: 30%;
    text-align: center;
    margin-left: -50px;
    margin-top: -100px;
    z-index: 2;
    overflow: auto;
}