.div_backgrndimg
{
    width:100%;  
height:100%;  
opacity:0.2;
    background-repeat: repeat-x-y;
    background-image: url("GRAIN.gif");
    background-size:250px;
    position:absolute;
	top: 0;
	left: 0;
}
.fullscreen-bg {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    z-index: -100;
}


.fullscreen-bg__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media (min-aspect-ratio: 16/10) {
    .fullscreen-bg__video {
        height: 300%;
        top: -100%;
    }
}

@media (max-aspect-ratio: 16/10) {
    .fullscreen-bg__video {
        width: 300%;
        left: -100%;
    }
}