#slideshow { 
    position: relative; 
	height: 225px; 
}

#slideshow > div { 
    position: absolute; 
}
@media(max-width:992px) {
    #slideshow {
        position: relative;
        height: 167px;
    }
}
@media(max-width:768px) {
    #slideshow {
        height: 0px;
    }
}