How to add more content?

You can add more content using the <details> tag, which allows for expandable and collapsible sections. Here’s an example of how to do it:

<details>
 <summary aria-expanded="false">Click me to see the content</summary>
 <p>Content goes here.</p>
 <p>More content.</p>
 <ul>
 <li>List item 1</li>
 <li>List item 2</li>
 </ul>
</details>

This code creates a summary that users can click to reveal additional content. You can place this code wherever you want to add expandable content in your HTML document.