HTML: Horizontal Rules

Horizontal Rules are simply a horizontal line that runs across the page. The tag is simply:

<hr /> and this would produce:

Horizontal Rules, just like breaks <br /> are considered to be self-closing elements. This means in the HTML 4.01 standard they do not require a closing tag. However to be forward compliant with XHTML 1.0 all tags are required to be closed. We could write this as:

<hr></hr> but that looks a bit awkward. The conventional and accepted way to close self-closing elements is to use this short-hand method:

<hr /> -- note there should be a single space between the hr and the /.