body{
  margin:0;
  padding:160px 0 0 150px;
 }
 div.header{
  position:absolute;
  top:0;
  left:150px;
  width:85%;
  height:150px;
background-color:#EEFFFF;
 }
 div.left-sidebar{
     margin-left:10px;
padding-right:20px;
margin-right:10px;
background-color:#EEFFFF;
  position:absolute;
  top:0;
  left:0;
  width:120px;
  height:100%;
 }
 @media screen{
  body>div#header{
   position:fixed;
  }
  body>div#left-sidebar{
   position:fixed;
  }
 }
 * html body{
  overflow:hidden;
 } 
 * html div.main{
  height:100%;
     margin-left:20px;
  overflow:auto;
 }