A simple custom CSS plugin for themes that integrates with the new theme customizer.
As of April 2026, CSS is a WordPress css plugin with 500 active installations and a 3/5 rating from 2 reviews. It has been downloaded 36K+ times in total. Requires WordPress 3.4+ and PHP false+. Available on WordPress.org since 2012. Last updated 8 years ago — may have compatibility concerns. Top alternative: WPCode – Insert Headers and Footers +….
A simple custom CSS plugin for themes that integrates with the new theme customizer.
Warning: Do not use this plugin in an untrusted environment. This plugin currently does not sanitize the CSS.
At the moment, it’s really more a proof-of-concept and example than anything else.
| WordPress | 3.4+ requiredTested up to 3.4.2 |
| PHP | false+ required |
Add CodeMirror CSS editor.
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