Plugin info

Total downloads: 546,559
Active installs: 80,000
Total reviews: 60
Average rating: 4.9
Support threads opened: 0
Support threads resolved: 0 (0%)
Available in: 1 language(s)
Contributors: 1
Last updated: 9/15/2025 (107 days ago)
Added to WordPress: 11/21/2015 (10 years old)
Minimum WordPress version: 4.0
Tested up to WordPress version: 6.8.3
Minimum PHP version: f

Maintenance & Compatibility

Maintenance score

Maintained • Last updated 107 days ago • 60 reviews

56/100

Is Simple CSS abandoned?

Likely maintained (last update 107 days ago).

Compatibility

Requires WordPress: 4.0
Tested up to: 6.8.3
Requires PHP: f

Developers

Languages

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Description

Need to add some custom CSS to your site? Simple CSS gives you an awesome admin editor and a live preview editor in the Customizer so you can easily add your CSS.

Want your CSS to only apply on a specific page or post? Simple CSS adds a metabox which allows you to do just that.

Check out GeneratePress, our awesome WordPress theme! (https://wordpress.org/themes/generatepress)

Features include:

  • Full featured admin CSS editor
  • Dark and light editor themes
  • CSS editor in the Customizer so you can live preview your changes
  • Metabox for page/post specific CSS

Installation

There’s two ways to install Simple CSS.

  1. Go to “Plugins > Add New” in your Dashboard and search for: Simple CSS
  2. Download the .zip from WordPress.org, and upload the folder to the /wp-content/plugins/ directory via FTP.

In most cases, #1 will work fine and is way easier.

Frequently Asked Questions

How do I add CSS using your plugin?

  • Make sure Simple CSS is activated.
  • Navigate to “Appearance > Simple CSS” and add your CSS to the editor.

How do I add CSS using the Customizer?

  • Make sure Simple CSS is activated.
  • Navigation to “Appearance > Customize” and open the “Simple CSS” section.

How do I change the editor color?

  • In “Appearance > Simple CSS”, change the “Dark” option below the “Save CSS” button to “Light”.

How do I add CSS that applies only to one page?

  • Navigate to your page or post in the Dashboard and look for the “Simple CSS” metabox.

Review feed

No reviews available

Screenshots

  1. The dark theme of the CSS editor.

    The dark theme of the CSS editor.

  2. The light theme of the CSS editor.

    The light theme of the CSS editor.

  3. The CSS editor in the Customizer.

    The CSS editor in the Customizer.

  4. The CSS editor metabox.

    The CSS editor metabox.

Changelog

1.1.1

  • Fix PHP notice when Simple CSS hasn’t been saved yet

1.1

  • Fix meta box saving issue

1.0

  • Show metabox only on public post types
  • Add live preview to Customizer
  • Code cleanup
  • Better sanitizing/validation

0.4

  • Use browser search instead of CodeMirror dialog search
  • Don’t show GeneratePress metabox if it’s already activated
  • Make CSS box full height

0.3

  • Add CSS metabox to add CSS on specific pages and posts
  • Adjust styling of dark theme
  • Add tips to Simple CSS screen

0.2

  • Remove extra whitespace from CSS output
  • Remove spellcheck from Customizer input
  • Allow > characters in the CSS
  • Add find (ctrl + f) functionality

0.1

  • Initial release