body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}

header {
    background-color: #ffffff;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

h1 {
    margin: 0;
}

h2 {
    margin: 5px 0 20px;
    font-weight: normal;
    color: #555;
}

main {
    padding: 20px;
}

.video-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.video {
    background-color: #ffffff;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 10px;
}

h3 {
    font-size: 16px;
    margin: 10px 0;
}

video {
    width: 100%;
    border-radius: 5px;
}