Wherever you see Common.attrib in an
element's content model, that element can carry any of
these attributes:
Common.attrib =
attribute id { xsd:ID }?,
attribute class { xsd:NMTOKENS }?,
attribute title { text }?,
attribute onclick { text }?,
attribute ondblclick { text }?,
attribute onkeydown { text }?,
attribute onkeypress { text }?,
attribute onkeyup { text }?,
attribute onmousedown { text }?,
attribute onmousemove { text }?,
attribute onmouseover { text }?,
attribute onmouseout { text }?,
attribute onmouseup { text }?
Section 15.4, “The id attribute: Assigning a unique
identifier to an element”.
Section 15.5, “The class attribute: Declaring an
element's CSS class”.
For all the attributes whose names start with on-, see Section 16, “Event attributes”.