html {

}

body {
    margin: 0;
    padding: 0;
}

.loading-overlay {
    opacity: 0;
    /*filter: alpha(opacity=0);*/
    position: fixed;
    top: 0;
    left: 0;
    z-index: 900;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3) !important;
}

.loading {
    position: fixed;
    margin-left: 40%;
    margin-top: 20%;
    height: 100%;
    width: 100%;
    /*background-image: url(../images/loading.gif);*/
    background-repeat: no-repeat;
}