.SceneTransition {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: white;
    opacity: 0;
    animation: scene-transition-fade-in 0.5s forwards;
}

.SceneTransition.fade-out {
    animation: scene-transition-fade-out 0.3s forwards;
}

@keyframes scene-transition-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scene-transition-fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}