.full-page::before, .full-page::after {
    display: block;
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 2;

}
.full-page::before {
    opacity: .5;
    background: #000000;
}

  
.full-page[data-color="black"]::after {
    background: #797979;
    background: -moz-linear-gradient(top, #797979 0%, #797979 100%);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #797979), color-stop(100%, #797979));
    background: -webkit-linear-gradient(top, #797979 0%, #797979 100%);
    background: -o-linear-gradient(top, #797979 0%, #797979 100%);
    background: -ms-linear-gradient(top, #797979 0%, #797979 100%);
    background: linear-gradient(to bottom, #797979 0%,#797979 100%);
	background-size: auto;
	background-size: 150%, 150%;
}

.full-page[data-image]::after, .full-page.has-image::after {
    opacity: .4;
}

.full-page > .content {
    
	z-index: 4;
	position: relative;
}
.full-page .full-page-background {
    position: absolute;
    z-index: 1;
    height: 100%;
    width: 100%;
    display: block;
    top: 0;
    left: 0;
    background-size: cover;
    background-position: center center;
}