#pack-configurator {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
}

#configuration-menu,
#packshot-menu {
  width: 30%;
}

#packshot-menu {
  display: none;
}

#element-configurator {
  flex: 1;
  position: relative;
}

.e2d #element-configurator {
  width: 50%;
}

@media (max-width: 768px) {
  #configuration-menu,
  #packshot-menu {
    width: 40%;
  }
}

@media screen and (orientation: portrait) {
  #pack-configurator {
    flex-direction: column-reverse;
  }

  #configuration-menu,
  #packshot-menu {
    width: 100%;
    height: 50vh;
  }

  #element-configurator {
    width: 100%;
    height: 50vh;
  }
}