There are probably quite a few fingerprinting surfaces you could pull out of CSS. For example (these are educated guesses): * Track what fonts a user has insta

There are probably quite a few fingerprinting surfaces you could pull out of CSS. For example (these are educated guesses): * Track what fonts a user has installed by asking for preinstalled fonts and using loaded fonts as a fallback * Track screen width and height by conditionally loading an image * Track screen height vs window height (linked to OS and various user settings)