body, html {
    height: 100%;
}

.background-image {
    height: 100%;
    background-position: 40% top;
    background-repeat: no-repeat;
    background-size: cover;
}

#advertisement {
    cursor: pointer;
    background-size: cover;
    background-position: center;
}

@media screen and (max-width: 980px){
	#advertisement{max-height: 100vw;}
}