function toggle() {
    let button = document.querySelector('.button');
    let value = button.textContent;
    if (value.toLowerCase() === "more") {
        button.textContent = "Less";
        document.getElementById('extra').style.display = 'block';
    } else if (value.toLowerCase() === "less")
        {
            button.textContent = "More";
            document.getElementById('extra').style.display = 'none';
        }
}