lang|=, Inheritance from an ancestor, block elements
Ignore this test. (lang|= with lang attribute is not supported)
You can only get meaningful results for this test if lang|= works with lang, since it checks a detail with regard to that support.
Test passes if the second line below has a green background.
Assertion: When styling is defined for a block element using lang|= but the language is only declared using a lang attribute on an ancestor element, the styling should NOT be picked up.