.background-img {
	background-image: url("banner-landingpage-wireless.jpg");
    background-position: center;
	min-height: 500px;
}

@media(max-width: 1200px){
	.background-img { background-image: url("banner-landingpage-wireless.jpg"); }
	
}
@media(max-width: 992px){
	.background-img { background-image: url("banner-landingpage-wireless-sm.jpg"); }
	
@media(max-width: 768px){
	.background-img { background-image: url("banner-landingpage-wireless-xs.jpg"); min-height: 300px; }
	
}