.contact-banner{background-image:url(/images/bg_contact_header.png);background-size:cover;background-repeat:no-repeat;background-position:center;width:100%;height:250px}@media (max-width: 639px){.contact-banner{background-image:url(/images/bg_contact_header_left.png),url(/images/bg_contact_header_right.png);background-size:20% auto;background-repeat:no-repeat,no-repeat;background-position:left center,right center}}