body
{
  margin:0px;
  padding:0px;
}
#wrapper
{
  width:875px;
  margin:auto;
  overflow:hidden; 
}
#header
{
  height:100px;
}
#menus
{
  height:37px; 
}
#maincontent
{
   width:600px; 
   float:left; 
}
#rightcontent
{
   width:250px;
   float:right;
 }
#footer
{
   height:82px; 
   clear:both; 
}
/* --- the codes below just help you to see the frame,those code will be delete and the end --*/
#header
{
  background:#f80;
}
#menus
{
  background:blue;
}
#maincontent
{
  background:green;
  height:500px;
}
#rightcontent
{
  background:#f90;
  height:500px;
}
#footer
{
  background:#666;
}