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

header {
    background: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
}

#search {
    padding: 10px;
    margin-top: 10px;
}

.thumbnail-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 20px;
}

.thumbnail {
    margin: 10px;
    cursor: pointer;
}

.thumbnail img {
    width: 200px;
    height: 150px;
    border-radius: 5px;
}

.video-player {
    display: none;
    flex-direction: column;
    align-items: center;
    background: #fff;
    padding: 20px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.video-player video {
    max-width: 100%;
}

.video-player button {
    margin: 5px;
}