body { 
  text-align: center; 
  margin: 0 auto; 
 } 
  
 #container { 
  width: 900px;
  margin: 0 auto;
  overflow: hidden; 
 } 
  
 #leftside { 
 text-align: center;
  float: left; 
  width: 200px;
  padding: 10px 0 0 0px;
  margin: 5px 0 0 5px;
 } 
  
 #content { 
  text-align : center; 
  float: right; 
  width: 675px; 
  padding: 10px 10px 0 10px;
  -moz-box-sizing:border-box;
  box-sizing:border-box;  
  margin: 0;
 }