* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    height: 100%;
    overflow: hidden;
}

#background-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#video-container {
    height: 100%;
    width: 100%;
    background-size: cover;
    background-position: center;
}

video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

#content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    font-size: 2rem;
    z-index: 1;
}

h1 {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 10px 20px;
    border-radius: 10px;
}