[lang="es"], lang="mx-es"
Ignore this test. (lang= with lang attribute is not supported)
You can only get meaningful results for this test if the lang= selector works with the lang attribute, since it checks a detail with regard to that support.
Test passes if you see green below.
Assertion: When the lang= value uses a single subtag, it will not match against an attribute value where it appears in a different position.