body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
}

#story {
    width: 500px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    white-space: pre-wrap;
}

#video {
    z-index: -1;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    min-height: 100%;
    min-width: 100%;
    filter: grayscale(1);
}

a {
    color: red;
    text-decoration: none;
}