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The following attributes are allowed on all tags:
idclasslangtitle
Attribute values must comply with regex rules defined in
<common-regexps>:id: Letters and numbers only.Colours:
#hex, named colours,rgb().
3.2
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Only use values explicitly listed in
<literal-list>or<regexp-list>.
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Empty Tags
Use
<br>or<hr>for line breaks or horizontal rules without adding content.
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