#tab_c1 { width:800px; }
#tab_c1 td.col_nav { width:133px; }
#tab_c1 td.col_c1 { width:441px; }
#tab_c1 td.col_side { width:226px; }

#tab_c2 { width:800px; }

div#c1 { width: 428px; }
div#c2 { width: 390px; }
div#c3 { width: 390px; }

div#c1 div.content { width: 318px; }
div#c2 div.content { width: 280px; }
div#c3 div.content { width: 280px; }