This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



This plugin sniffs users agents, and provides a set of theme options for a user to put browser-specific CSS styles. It’s very easy to use, very simple, and very powerful.


  1. Upload CSSniffer.php to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. Click of ‘CSSniffer’ in the Appearance tab.
  4. Hack some CSS like no tomorrow!


What browsers can I target?

Right now, you can specifiy CSS rules for Internet Explorer, Firefox, Webkit, Opera, and iPhone.

Contributors & Developers

“CSSniffer” is open source software. The following people have contributed to this plugin.


Translate “CSSniffer” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Offcial release of CSSniffer