#copyright {
  width: 100%;
  height: 30px;
  bottom: 0;
  left: 0;
  position: fixed;
}

#logo {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  position: fixed;
}

#overlay {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  position: fixed;
}