.doc{
background-color:rgb(255,255,255) !important;
background-image:url(http://img.tiantis.com/bc98a1c8fffd011d20d0e29decd6e864.jpg) !important;background-position:center 0px;
background-position:center 0px !important;
background-repeat:no-repeat !important;
}
.sitewrapper{width:1200px;}
.content.enlarge{width:100%;}
@media screen and (max-width: 1200px) { .nav,#bannerchange,#logoChange { width:1200px}}