#fullscreen-toggle {
    background-color: #4caf50; /* Green */
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    /* box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2); */
    transition: background-color 0.3s ease;
    padding: 20;
}

#fullscreen-toggle:hover {
    background-color: #45a049; /* Darker green */
}