.backdropContainer {
    contain: layout style size
}

.backdropImage {
    background-repeat: no-repeat;
    background-position: center center;
    -webkit-background-size: cover;
    background-size: cover;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    contain: layout style
}

.backdropImageFadeIn {
    -webkit-animation: backdrop-fadein .8s ease-in normal both;
    animation: backdrop-fadein .8s ease-in normal both
}

@-webkit-keyframes backdrop-fadein {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

@keyframes backdrop-fadein {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}