.preloader
{
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.7);
    z-index: 3000;
}

.preloader-animation
{
    background-image: url('../../img/loader.gif');
    background-position: center;
    background-repeat: no-repeat;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
}