styles.css

body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
}
#app {
    display: flex;
    flex-direction: column;
    height: 100%;
}
#video-container {
    flex-grow: 1;
    position: relative;
}
iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}
#button-container {
    padding: 10px;
    background-color: #f0f0f0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-height: 30%;
    overflow-y: auto;
}
#button-container button {
    margin: 5px;
    padding: 10px;
    font-size: 14px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}
#button-container button:hover {
    background-color: #45a049;
}
#button-container button.active {
    background-color: #007bff;
}