#christmas-lights {
  background: url(christmas-lights.png);
  height: 36px;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  pointer-events: none;
}
body.toolbar-fixed #christmas-lights {
  top: 39px;
}
body.toolbar-fixed.toolbar-horizontal.toolbar-tray-open #christmas-lights {
  top: 79px;
}