body {
  font-size: 18px;
}

h1, .top-menu {
  font-size: 36px;
}

h2 {
  font-size: 27px;
}

h3, .mid-menu {
  font-size: 22px;
}

#background {
  width: 720px;
  height: 480px;
}

#main { 
  position: absolute;
  left: 72px;
  top: 48px;
  width: 576px;
  height: 384px;
}

#footer1 {
  position: fixed;
  left: 72px;
  bottom: 48px;
  width: 576px;
  height: auto;
  text-align: left;
}

#footer2 {
  position: fixed;
  left: 72px;
  bottom: 48px;
  width: 576px;
  height: auto;
  text-align: right;
}