body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background-color: green; /* Màu đỏ YouTube */
    color: white;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

main {
    max-width: 800px; /* Giới hạn chiều rộng để dễ xem */
    margin: 20px auto;
    padding: 0 20px;
}

h2 {
    border-bottom: 2px solid #ccc;
    padding-bottom: 10px;
    margin-top: 40px;
}

#video-list {
    display: flex;
    flex-direction: column; /* Xếp từng video theo hàng dọc */
    gap: 30px;
}

.video-item-inline {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    padding: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.video-title-inline {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.video-item-inline iframe {
    display: block;
    border-radius: 4px; /* Bo tròn góc iframe */
}

footer {
    text-align: center;
    padding: 15px;
    background-color: #333;
    color: white;
    margin-top: 40px;
}