/*底部 地址字体格式*/ 

.center_context{ 
/*background-attachment:fixed; 

background-image:url(column_left.jpg); 
background-position:center; 
background-repeat:no-repeat; */
background:url(column_left.jpg) center top no-repeat; 
} 
/*标题背景设置*/
.top_background{ 
/*background-attachment:fixed; 

background-image:url(column_left.jpg); 
background-position:center; 
background-repeat:no-repeat; */
background:url(column_left.jpg) center top no-repeat; 
}