:lang(cs-CZ), lang="cs-Latn-CZ"


This test failed because it relies on :lang for results, but :lang is not supported by this browser.

A :lang value with language and region subtags will NOT match a lang attribute value with language, script and region subtags.

This tests a detail related to :lang support. If :lang is not supported, a message will appear and the test will fail.

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