Daniele De Santis

WP Add Custom CSS allows you to add custom CSS to the whole website and to individual posts, pages and custom post types (such as Woocommerce products). 
The CSS rules applied to the whole website will override the default stylesheets of your theme and plugins, while the CSS rules applied to specific pages, posts or custom post types will override the main stylesheet too.
The plugin works with the most popular builders, such as Elementor, Gutenberg and the Classic Editor.
You can edit the main stylesheet from the the “Add custom CSS” settings page. 
The plugin also creates a new “Custom CSS” box in the editing area to add custom CSS to specific posts, pages and custom post types.
Select the preferred CSS output method from the plugin’s settings page to ensure seamless integration with caching and minification plugins or to improve above-the-fold rendering performance.

WP Add Custom CSS


Says it has not been tested against recent versions, but it works great still. Simple and elegant solution. Sep 13 2024


Still works great

Add custom css to the whole website and to specific posts and pages.

thom4

fabrizim

<a href="http://lesscss.org" rel="nofollow ugc">LESS</a> is a templating language based on top of CSS. It provides numerous enhancements to speed up development and make its maintenance easier.
Theme developers can even bundle the plugin without worrying about conflicts: just include the special <code>bootstrap-for-theme.php</code> and read its instructions.
<h4>Features</h4>
<ul>
<li>Variables</li>
<li>Mixins (inheritance of rules)</li>
<li>Nested Rules (write less, do more)</li>
<li>Accessors (inherit a value from a specific rule)</li>
<li>Functions (logic operations for dynamic results)</li>
</ul>
The plugin lets you concentrate on what you need: coding CSS. Everything else is handled automatically, from cache management to user delivery. 
Seriously.
<h4>Documentation</h4>
Advanced topics on how to use the plugin API are <a href="https://github.com/oncletom/wp-less/tree/master/doc" rel="nofollow ugc">available on the Github project documentation</a>.
<h4>Requirements</h4>
The sole requirement is to use WordPress API and LESS convention: the <code>.less</code> extension.
Minimal Requirements: PHP 5.3 and WordPress 3.2. 
Relies on: <a href="http://lessphp.gpeasy.com/" rel="nofollow ugc">Less.php</a>, <a href="https://wordpress.org/extend/plugins/plugin-toolkit/" rel="ugc">plugin-toolkit</a>.
Notice: in case you’d like to drop the usage of this plugin, it’s safe to do it. You will just need to convert back your stylesheets to CSS.

WP-LESS

Implementation of LESS (Leaner CSS) in order to make themes development easier.

WP Add Custom CSS vs WP-LESS