XHTML 1.1 has the stringency of XHTML 1.0 Strict .
XHTML 1.1 is the most current finalized revision of XHTML , introducing support for XHTML Modularization .
revision   has the stringency of XHTML 1.0 Strict .
XHTML 1.1 is the most current finalized revision of XHTML , introducing support for XHTML Modularization .