#middle_content_1
{ /**/
    float:left;
    width:576px;
    max-width:746px;
    min-width:576px;
    height:auto;
    background-color:Transparent;
    
    }
#middle_content_2
{
    float:left;
   
    width:170px;
    max-width:170px;
    min-width:1px;
    height:auto;
    padding: 0px 0px 0px 0px;
   
}