#header {
  height: 310px ; /* 280 slideshow + 5 space + 25 page-list */
  background-image: url('images/homepage.jpg') ;
}

#header .go-home {
  left: 0px ;
}

#header .slideshow {
  margin-bottom: 5px ;
}

#header h1.prevention {
  position: absolute ;
  right: 0px ;
  top: 120px ;
}

#header h1.treatment {
  position: absolute ;
  right: 0px ;
  top: 262px ;
}

#header h1.prevention a, #header h1.treatment a {
  padding-top: 138px ;
  width: 270px ;

  /* hide text */
  display: block ;
  overflow: hidden ;
  height: 0px ;
}

#left {
  width: 310px ;
  float: left ;
}

#middle {
  width: 310px ;
  margin: 0px 30px ;
  float: left ;
}

#right {
  width: 270px ;
  float: left ;
}