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.

Simple CSS

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

Screenshots

  • The dark theme of the CSS editor.
  • The light theme of the CSS editor.
  • The CSS editor in the Customizer.
  • The CSS editor metabox.

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.

FAQ

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.

Reviews

སྤྱི་ཟླ་བཅུ་གཉིས་པ། 16, 2023
This seems like a great idea, and it’s super to finally be clear of the small Additional CSS panel in native wordpress. What’s making me unsure if I should continue are 2 things: 1 – when you press Save, it shoots you back to the top of the CSS file. If you wanted to check and re-edit a bit you were working on, you’ve got to find it again. 2 – no code hints to help complete as you type. Both these things are present on the Additional CSS panel but not here. Hope they can introduce!
སྤྱི་ཟླ་དགུ་པ། 23, 2023
By far the best plugin to add custom css, I have been using it for years now and in many websites.
སྤྱི་ཟླ་དང་པ། 18, 2023
Please update is amazing plugin.
སྤྱི་ཟླ་གཉིས་པ། 9, 2021
I had been struggling with page speed but could see in GT Metrix that custom CSS (Jetpack) was taking over 1 second to load. Copied it over to Simple CSS and page load dropped from 3.3 seconds to 0.8s! That’s a 75% reduction – fantastic!!! [Also, I love that I can drop a little bit of CSS into the meta box for some post-specific tweaks – so cool, saves CSS bloat for rarely used styling]
Read all 60 reviews

Contributors & Developers

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

Contributors

Translate “Simple CSS” into your language.

Interested in development?

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

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