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

body {
    min-height: 1500vh;
}

.banner {
    position: fixed;
    width: 100%;
    height: 100vh;
}

.banner video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}