h1 {
  background:
    transparent
    url('img/h1.gif')
    no-repeat
    scroll
    top left;
  width:237px;
  height:24px;
  overflow:hidden;
  text-indent: -1000em;
}

#virus {
  background:
    transparent
    url('img/h2/virus.gif')
    no-repeat
    scroll
    top left;
  width:248px;
  height:20px;
  overflow:hidden;
  text-indent: -1000em;
}

#router {
  background:
    transparent
    url('img/h2/router.gif')
    no-repeat
    scroll
    top left;
  width:226px;
  height:22px;
  overflow:hidden;
  text-indent: -1000em;
}

#wireless {
  background:
    transparent
    url('img/h2/wireless.gif')
    no-repeat
    scroll
    top left;
  width:192px;
  height:22px;
  overflow:hidden;
  text-indent: -1000em;
}

#op25b {
  background:
    transparent
    url('img/h2/op25b.gif')
    no-repeat
    scroll
    top left;
  width:294px;
  height:22px;
  overflow:hidden;
  text-indent: -1000em;
}

#mailauth {
  background:
    transparent
    url('img/h2/mailauth.gif')
    no-repeat
    scroll
    top left;
  width:469px;
  height:22px;
  overflow:hidden;
  text-indent: -1000em;
}