#content_box{      
   overflow:hidden; 
   float: left;
   
   
}
#produc_link{
  float: left;  

  
}
#display_i {  
   padding:15px 17px 17px 17px;     
  width : 568px;    
   height: 483px; 
  background: transparent url(images/vietrothor_03.gif) no-repeat scroll 0 0;   
  float:left;
  
} 

div,ul,li,img{
    margin: 0;
    padding: 0;
}  
#produc_link ul li{ 
    list-style-type: none;
    list-style: none;
}
div.center{
    margin: 0;
}