html {
        height: 100%;
        background: url(pictures/Flagandsky2_HDR2.jpg);
        background-size: 100% 100%;
	background-repeat: no-repeat;
        
}

div {
        width: 80%;
        height: 100%;
        margin: 4em auto;
        background-color: rgba(255,255,255,.8);
        
}