The XLink specification defines an attribute with the name
The XHTML specification also uses
href attributes on some elements.
And the XInclude specification uses
An XSLT style sheet that will transform XHTML documents containing both Scalable Vector Graphics (SVG) pictures and MathML equations into XSL-Formatting object documents.
font elements in XHTML and SVG
table element in XHTML and XSL-FO
text element in XSLT and SVG
set element in MathML and SVG
An XSLT stylesheet that transforms a style sheet in an older version of the XSLT specification to a style sheet in a newer version of the XSLT specification.