Modular Custom CSS
WordPress core provides custom CSS functionality in the customizer that's specific to the current theme; you can switch themes freely with each t …
5(6 reviews)
·400 active installs·Updated 1 year agoAs of April 2026, Modular Custom CSS is a WordPress css plugin with 400 active installations and a 5/5 rating from 6 reviews. It has been downloaded 18K+ times in total. Requires WordPress 4.0+ and PHP false+. Available on WordPress.org since 2014. Last updated 1 year ago — may have compatibility concerns. Top alternative: WPCode – Insert Headers and Footers +….
5/56 reviews
400active installs
18K+total downloads
12 yearssince 2014
Overview
WordPress core provides custom CSS functionality in the customizer that’s specific to the current theme; you can switch themes freely with each theme’s additional CSS remaining in place. Sometimes, you need some CSS to apply regardless of the current theme persistently. This plugin adds a plugin CSS option for CSS that’s global and persists across theme changes.
With the Customizer, your CSS is instantly live-previewed, offering the ability to see exactly how your site will look before you publish your changes. The plugin CSS option is stored as an option. Prior to WordPress 4.7 (which introduced additional CSS in core), theme-specific CSS was stored as a theme_mod, in 4.7 and newer this is migrated to the core CSS functionality (which is theme-specific).
Screenshots
Ratings & Reviews
56 reviews
5 ★
6
4 ★
0
3 ★
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2 ★
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1 ★
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Compatibility
| WordPress | 4.0+ requiredTested up to 6.6.5 |
| PHP | false+ required |
Top Alternatives to Modular Custom CSS
Frequently Asked Questions
Changelog
2.1
- Leverage the Code Editing control in WordPress 4.9 to add syntax highlighting, hinting, and more.
- Add more-descriptive text to the core theme CSS control, to distinguish it from the plugin CSS control.
- Add plugin textdomain to facilitate translations.
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.