.background {
  /* Set rules to fill background */
  width: 100%;
  /* Set up proportionate scaling */
  min-height: 100%;
  height: auto;
  /* Set up positioning */
  position: fixed;
  top: 0;
  left: 0;
  user-select: none;
  -webkit-user-drag: none;

  z-index: -1;
}

.background.landscape {
  /* Set rules to fill background */
  height: 100%;
  /* Set up proportionate scaling */
  min-width: 100%;
  width: auto;
}