These tests fail: xhtml1/absolute-replaced-height-006 xhtml1/absolute-replaced-height-013 xhtml1/absolute-replaced-height-020 xhtml1/absolute-replaced-height-027 xhtml1/absolute-replaced-height-034 http://test.csswg.org/suites/css2.1/20110111/xhtml1/absolute-replaced-height-006.xht etc.
These tests are no longer in the nightly-unstable version of the suite. http://test.csswg.org/suites/css2.1/nightly-unstable/html4/