Onboarding.css

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

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

.wrapper {
    left: 50%;
    margin: auto;
    max-width: 100%;
    position: absolute;
    text-align: center;
    transform: translate3d(-50%, 0, 0);
    width: 512px;

    > div,
    > section,
    > form {
        align-items: center;
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-height: 100vh;
        width: 100%;

        > header,
        > main,
        > footer {
            width: 100%;
            padding: 0 16px;
        }

        > main {
            display: flex;
            flex: 1 1 auto;
            flex-direction: column;
            justify-content: center;
        }

        > header,
        > footer {
            flex: 0 1 auto;
            padding: 16px;
        }
    }
}

.body-home {
    background-image: url(images/hello-back.png), url(images/bg-green.svg);
    background-size: contain, 100% 100%;
    background-position: center;
}

.body-done {
    background-image: url(images/balloons.png), url(images/bg-green.svg);
    background-size: contain, 100% 100%;
    background-position: center;
}

.formGroup {
    text-align: left;
    margin: 0 0 16px 0;
}

.seed {
    letter-spacing: 5px;
    font-size: 150%;
}

.qrScanner {
    width: 640px;
    max-width: 100%;
    margin: auto;
    transform: rotateY(180deg);
    video {
        max-width: 100%;
    }
}

.pageTransition {
    opacity: 1;
    &-enter {
        animation-name: fade-in;
        animation-duration: 0.3s;
        animation-fill-mode: both;
        animation-timing-function: ease;
        z-index: 1;
    }

    &-exit {
        animation-name: fade-out;
        animation-duration: 0.3s;
        animation-fill-mode: both;
        animation-timing-function: ease;
    }
}