body {
  margin:0;
  border:0;
  padding:0;
  height:100%;
  max-height:100%;
  overflow: hidden
  }

/* for internet explorer */

* html body {
  padding:100px 0 50px 0;
  }

* html #contents {
  height:100%;
  width:100%;
  }

#header
  {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100px;
  overflow:hidden;
  font-size:100%;
  background:black
  }

#contents
  {
  position:fixed;
  top:100px;
  left:0;
  bottom:0;
  right:0;
  overflow:auto;
  font-size:100%;
  background:white
  }