Other useful tags

There are many other tags in HTML.

hr

The <hr> tag makes a horizontal line. Use it after a <p> tag, or before an <hx> tag, to break up sections of your document. Like this:

<p>Question: why did the turkey cross the road?</p>
<hr>
<p>To prove it wasn't chicken.</p>

It looks like this:

But wait, there's more!

The Mozilla Development Network has good references for HTML, and other stuff.