@media only screen and (max-width: 767px) {
    .coming-soon-fullscreen {
        width: 100%;
        background: url(../img/bg-app.jpg);
        background-attachment: fixed;
        background-position: 0 0;
        background-repeat: no-repeat;
        width: 100%;
        height: 100%;
        display: table;
        min-height: 100%;
        position: relative;
        z-index: 1;
    }
}