Are you sure that selector is working? Better target your audience of browsers by checking some CSS-Tests first. I compiled a little list as of a start:
Cheat Sheet / Overview
- CSS contents and browser compatibility – Quirksmode compatibility tables. Warning: Not that easy to read!
- CSS selectors and pseudo selectors browser compatibility – The Cheatsheet. Selectors nicely displayed in one table.
- David Baron CSS Test Results – Another Cheatsheet, Nicely displayed in one table, all tests referenced.
- Official W3C CSS Test Suites – A Big Bunch of Testuites. Incl. stored results in a subfolder of each suite.
- nglayout project – test cases: CSS – Mozilla.org hosted project. What to say? Mozilla minus the marketing is still fucking (as the British say) great!
- The CSS Import Test Suite – Tests on the import(ant) feature, a nice thing to learn about what’s possible with those. More tests available but be aware with the functionality of the site because parts of it are not working even still referenced (Test first *gg*).
- Acid2 Test – Classique in style.
- CSS Test – CSS Zibaldone – Use-Oriented testsuite. You need to run it on your own and you need to run those manually which means: take your time, it’s a large list. A lot to learn practically anyways.
- CSS Tests by gabriele romanato – Some tests. You like it short? You like to get the image? You need the links? Take this one.