To draw a horizontal rule (black line) across the page as
a separator, use an empty hr element.
Content model:
element hr
{ Common.attrib,
empty
}
Common.attrib
An hr element can carry any of the
attributes discussed in Section 15.3, “The common attributes: Common.attrib”.
In particular, if you want to change the color or
thickness or other appearance of a rule, you can
give it a class attribute that ties
it to a CSS stylesheet rule. See Section 5, “Separating content and presentation with CSS”.
empty
No content is allowed inside an hr
element. Encode it as <hr/>.