#app-container {
  position: relative;
  width: 100%;
  height: 100%;
}

#ebene-0 {
  position: fixed;
  width: 100vw;
  height: 100vh;
  background-color: #2D56A9;
  z-index: 0;
}

#ebene-1 {
  width: 100%;
  height: 100%;
  background-color: transparent;
  z-index: 1;
}

#ebene-2-oben {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: #626D69;
  z-index: 2;
}

#ebene-2-unten {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: #626D69;
  z-index: 2;
}