CSS Selectors

Is your browser compatible?

After starting the test-suite it will automatically run a large number of small tests which will determine if your browser is compatible with a large number of CSS selectors. If it is not compatible with a particular selector it is marked as such. You can click on each CSS selector to see the results, including a small example and explanation for each of tests.

Because it is technically not possible to simulate certain user interactions the test is limited to CSS selectors that are not dependent on user interactions. So this test-suite does not include tests for the following selectors: :hover, :active, :focus and :selection.

Start the CSS Selectors test »

The continued hosting of this CSS Selectors test was generously made possible by M4M Zoekmachine Marketing. The added value of having a nicely structured and validating CSS is not just for users. It's a great basis for optimizing your website for the search engines too!

The CSS Selector compatibility test-suite was the winning entry of the CSS3.info summer contest. Created by Niels Leenheer, http://rakaz.nl. All test-cases and Javascript code is licensed under a BSD-like license.