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9.11. The hr element: horizontal ruled line

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/>.