body {
    overflow: auto; /* or overflow: visible; */
}

/* Preloader */

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #fff; /* change if the mask should have another color then white */
    z-index: 99; /* makes sure it stays on top */
}

#status {
    width: 200px;
    height: 200px;
    position: absolute;
    left: 50%; /* centers the loading animation horizontally one the screen */
    top: 50%; /* centers the loading animation vertically one the screen */
    background-image: url(../img/bx_loader.gif); /* path to your loading animation */
    background-repeat: no-repeat;
    background-position: center;
    margin: -100px 0 0 -100px; /* is width and height divided by two */
}