#main   {margin:0px;padding:0px;}
#ctin   {margin-top:6px;}

#ctin div.section1  {height:308px;}
#ctin div.section1 div.ctin1    {width:496px;height: 308px;float:left;}
#ctin div.section1 div.ctin2    {width:494px;height:306px;float:right;}

#ctin div.section2  {height:460px;margin-top: 8px;}
#ctin div.section2 div.ctin1    { width: 750px;height: 458px;float: left;}
#ctin div.section2 div.ctin2    { width: 238px;height: 458px;float: right;}

#ctin div.section3  {width: 998px; height: 198px;margin-top: 8px;}

#ctin div.section4  { height: 340px;margin-top: 8px;}
#ctin div.section4 div.ctin1    { width: 370px;height: 338px;float: left;}
#ctin div.section4 div.ctin2    { width: 370px;height: 338px;float: left;margin-left: 8px;}
#ctin div.section4 div.ctin3    { width: 238px;height: 338px;float: right;}