body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #000;
    color: #fff;
    padding: 20px;
    text-align: center;
}

main {
    padding: 20px;
}

.category {
    margin-bottom: 30px;
}

.category h2 {
    margin-bottom: 10px;
}

.video-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.video {
    width: 200px;
    text-align: center;
}

.video a {
    text-decoration: none;
    color: #000;
}

.video img {
    width: 100%;
    border-radius: 5px;
    cursor: pointer;
}

.video h3 {
    margin-top: 10px;
}