The Pixels Attribute Type is a data type defined by XHTML Modularisation 1.1, declared in the DTD as XML 1.0 type CDATA.
Reference: *W3C - XHTML Modularisation 1.1 - Attribute Types
There are no Common Attributes with type Pixels.
An integer specifying length in pixels, e.g. "3"
The only attribute in XHTML 1.1 with the Pixels Attribute Type is the
border attribute of the
table element, which specifies the width of the
frame around the table in pixels.