body {
    font-family: sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
}

h1 {
    color: #333;
    text-align: center;
}

.video-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    justify-content: center;
}

.video-item {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.video-item h3 {
    margin-top: 0;
    font-size: 1rem;
}

.video-item video {
    width: 100%;
    height: auto;
    border-radius: 4px;
}