.header {background:url('/images/3/banner.jpg') center 29px no-repeat;}
.res940 .header {background:url('/images/3/banner-940.jpg') center 35px no-repeat;}
.res720 .header {background:url('/images/3/banner-720.jpg') center 80px no-repeat;}
.res480 .header {background:url('/images/3/banner-480.jpg') center 61px no-repeat;}
.res320 .header {background:url('/images/3/banner-320.jpg') center 75px no-repeat;}