body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}
header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}
.video-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: calc(100vh - 120px);
}
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    position: absolute;
    bottom: 0;
    width: 100%;
}