<div id="header" style="position: fixed; top: 0; left: 0; right: 0; background-color: black; z-index: 1000; padding: 10px; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);">
    <button id="toggleButton" style="background-color: black; color: white; width: 250px; font-weight: bold; font-size: 28px; margin-top: 0px;">Go get A+</button>
</div>