#site_center {text-align:center;}
#main, #footer_main {margin:0 auto; width:766px; text-align:left;}

#header, #content, #footer {width:100%}

.min_width {min-width:766px; width:expression(((document.documentElement.clientWidth || document.body.clientWidth) < 766)? "766px" : "100%");}

/*You can modify the width of the website by changing "width" parameter with #main, #footer. The minimum value is 766px.*/