Title: Blocks CSS: CSS Editor for Gutenberg Blocks
Author: Hardeep Asrani
Published: <strong>14 de febrer de 2019</strong>
Last modified: 6 de juliol de 2026

---

Cerca extensions

![](https://ps.w.org/blocks-css/assets/banner-772x250.jpg?rev=2030330)

![](https://ps.w.org/blocks-css/assets/icon-256x256.jpg?rev=2030330)

# Blocks CSS: CSS Editor for Gutenberg Blocks

 Per [Hardeep Asrani](https://profiles.wordpress.org/hardeepasrani/)

[Baixa](https://downloads.wordpress.org/plugin/blocks-css.3.2.0.zip)

 * [Detalls](https://ca.wordpress.org/plugins/blocks-css/#description)
 * [Ressenyes](https://ca.wordpress.org/plugins/blocks-css/#reviews)
 * [Desenvolupament](https://ca.wordpress.org/plugins/blocks-css/#developers)

 [Suport](https://wordpress.org/support/plugin/blocks-css/)

## Descripció

Blocks CSS allows you add custom CSS to your Blocks straight from the Block Editor(
Gutenberg).

It adds a syntax-highlighted CSS Editor where you can add additional CSS to your
Gutenberg Blocks to style them the way you want.

All the code and sources for this plugin are publicly available as part of https://
github.com/Codeinwp/otter-blocks.

## Captures

[⌊CSS Editor⌉⌊CSS Editor⌉[

CSS Editor

[⌊CSS Editor⌉⌊CSS Editor⌉[

CSS Editor

## Ressenyes

![](https://secure.gravatar.com/avatar/2e30329ab3220e0cf929fe14c6efe89bed6c64d148c584e805618d4425862c04?
s=60&d=retro&r=g)

### 󠀁[Indispensable!](https://wordpress.org/support/topic/indispensable-272/)󠁿

 [maltmann](https://profiles.wordpress.org/maltmann/) 8 de febrer de 2026 1 resposta

Works like a charm on any of my recent WP projects. [EDIT]I need to change my review.
On some setups, I get two CSS editors shown in the «Custom CSS» attribute panel,
and only contents of the second instance are getting saved.Problem:Two CodeMirror
editors are displayed in the Custom CSS panel of the Blocks CSS plugin instead of
one. Both editors are located in the same container. Assumed Root Cause:WordPress
enables React StrictMode by default in the Block Editor. React StrictMode runs useEffect
hooks twice to detect potential side effects. Analysis:The Blocks CSS plugin initializes
CodeMirror in a useEffect hook.Since this useEffect doesn’t have a cleanup function
that checks whether CodeMirror is already initialized, wp.CodeMirror() is called
again on every mount cycle. With StrictMode enabled, this means: twice on the same
DOM element. Probable Solution:The useEffect hook should implement a cleanup function
that prevents CodeMirror from being initialized multiple times on the same element.
Side Notes:This only happens in some of my setups. I couldn’t figure out any possibly
conflicting theme, plugin or code snippet. So I assume it might be something like
a timing issue. Conclusion:I won’t change the 5-star rating, because despite of 
this problem the plugin does its job. And I know how to handle this issue by a simple
CSS rule to hide all Block CSS CodeMirrors except the last one:#o-css-editor .CodeMirror:
not(:last-child) { display: none;}

![](https://secure.gravatar.com/avatar/6cbd96106c76dfd85e755f1aba9c463817d1b9d5dd74bb64b84dad2b458a790c?
s=60&d=retro&r=g)

### 󠀁[Отличный плагин](https://wordpress.org/support/topic/%d0%be%d1%82%d0%bb%d0%b8%d1%87%d0%bd%d1%8b%d0%b9-%d0%bf%d0%bb%d0%b0%d0%b3%d0%b8%d0%bd-991/)󠁿

 [Сергей](https://profiles.wordpress.org/serzh82/) 20 de novembre de 2025 1 resposta

Отличный плагин

![](https://secure.gravatar.com/avatar/ff57a8df8c1ffea97f5c0992bed6943b19a831dbc8b3a0f9153dc4421fa1c4cc?
s=60&d=retro&r=g)

### 󠀁[Моя оценка: пять звезд](https://wordpress.org/support/topic/%d0%bc%d0%be%d1%8f-%d0%be%d1%86%d0%b5%d0%bd%d0%ba%d0%b0-%d0%bf%d1%8f%d1%82%d1%8c-%d0%b7%d0%b2%d0%b5%d0%b7%d0%b4/)󠁿

 [shooter604](https://profiles.wordpress.org/shooter604/) 14 de novembre de 2025
1 resposta

Очень классные возможности! Пользуюсь постоянно!

![](https://secure.gravatar.com/avatar/5a04f5d680efd2cb46cc23d68d1e4d7c94f7e4e910dd0b60c54ebd63861e1785?
s=60&d=retro&r=g)

### 󠀁[The Other Review Titles Say It All](https://wordpress.org/support/topic/the-other-review-titles-say-it-all/)󠁿

 [someguy42](https://profiles.wordpress.org/someguy42/) 24 de juliol de 2024 1 resposta

«Essential, Useful Tool, Completes the Block Editor, Should be part of the core,»
The one thing they don’t mention is how quick and genuinely concerned the support
is.

![](https://secure.gravatar.com/avatar/fc490c401adf61289262192824d444a5f47939eb723b3ccc8ce7c73065cb7c0f?
s=60&d=retro&r=g)

### 󠀁[Simple and great plugin!](https://wordpress.org/support/topic/simple-and-great-plugin-36/)󠁿

 [Andreslav](https://profiles.wordpress.org/andreslav/) 4 de octubre de 2023 1 resposta

Does exactly what I need it to do.

![](https://secure.gravatar.com/avatar/947be7e3fe72d711a506739fa280376b9985c11cc9005f1b6ae2eedece99d515?
s=60&d=retro&r=g)

### 󠀁[Completes Block Editor](https://wordpress.org/support/topic/completes-block-editor/)󠁿

 [Masud Rana](https://profiles.wordpress.org/yeelloo/) 26 de setembre de 2023 1 
resposta

Can’t think of Block Editor without this. Tiny powerful thing. Only thing I hate
in this plugin is the following line: $render_css = empty( $file_name ) || strpos(
$file_name, ‘post-v2’ ) === false; This means if you deactivate Otter, your content
might just break 🙁

 [ Llegiu totes les 25 ressenyes ](https://wordpress.org/support/plugin/blocks-css/reviews/)

## Col·laboradors i desenvolupadors

«Blocks CSS: CSS Editor for Gutenberg Blocks» és programari de codi obert. La següent
gent ha col·laborat en aquesta extensió.

Col·laboradors

 *   [ Hardeep Asrani ](https://profiles.wordpress.org/hardeepasrani/)
 *   [ Themeisle ](https://profiles.wordpress.org/themeisle/)

“Blocks CSS: CSS Editor for Gutenberg Blocks” s’ha traduït a 10 configuracions regionals.
Gràcies als [traductors](https://translate.wordpress.org/projects/wp-plugins/blocks-css/contributors)
per les seves aportacions.

[Traduïu «Blocks CSS: CSS Editor for Gutenberg Blocks» a la vostra llengua.](https://translate.wordpress.org/projects/wp-plugins/blocks-css)

### Interessats en el desenvolupament?

[Navegueu pel codi](https://plugins.trac.wordpress.org/browser/blocks-css/), baixeu-
vos el [repositori SVN](https://plugins.svn.wordpress.org/blocks-css/), o subscriviu-
vos al [registre de desenvolupament](https://plugins.trac.wordpress.org/log/blocks-css/)
per [fisl de subscripció RSS](https://plugins.trac.wordpress.org/log/blocks-css/?limit=100&mode=stop_on_copy&format=rss).

## Registre de canvis

You can check the changelog [here.](https://github.com/Codeinwp/otter-blocks/blob/master/CHANGELOG.md)

## Meta

 *  Versió **3.2.0**
 *  Darrera actualització **fa 6 dies**
 *  Instal·lacions actives **5.000+**
 *  Versió del WordPress ** 6.6 o posterior **
 *  Provada fins a **7.0.1**
 *  Versió del PHP ** 5.4 o posterior **
 *  Idiomes
 * [Chinese (Taiwan)](https://tw.wordpress.org/plugins/blocks-css/), [Dutch](https://nl.wordpress.org/plugins/blocks-css/),
   [Dutch (Belgium)](https://nl-be.wordpress.org/plugins/blocks-css/), [English (US)](https://wordpress.org/plugins/blocks-css/),
   [French (Canada)](https://fr-ca.wordpress.org/plugins/blocks-css/), [German](https://de.wordpress.org/plugins/blocks-css/),
   [German (Switzerland)](https://de-ch.wordpress.org/plugins/blocks-css/), [Hebrew](https://he.wordpress.org/plugins/blocks-css/),
   [Russian](https://ru.wordpress.org/plugins/blocks-css/), [Spanish (Spain)](https://es.wordpress.org/plugins/blocks-css/),
   i [Swedish](https://sv.wordpress.org/plugins/blocks-css/).
 *  [Traduïu a la vostra llengua](https://translate.wordpress.org/projects/wp-plugins/blocks-css)
 * Etiquetes
 * [block-editor](https://ca.wordpress.org/plugins/tags/block-editor/)[css editor](https://ca.wordpress.org/plugins/tags/css-editor/)
   [custom css](https://ca.wordpress.org/plugins/tags/custom-css/)[design](https://ca.wordpress.org/plugins/tags/design/)
   [gutenberg](https://ca.wordpress.org/plugins/tags/gutenberg/)
 *  [Vista avançada](https://ca.wordpress.org/plugins/blocks-css/advanced/)

## Valoracions

 4.9 sobre 5 estrelles.

 *  [  23 valoracions de 5 estrelles     ](https://wordpress.org/support/plugin/blocks-css/reviews/?filter=5)
 *  [  1 valoració de 4 estrelles     ](https://wordpress.org/support/plugin/blocks-css/reviews/?filter=4)
 *  [  1 valoració de 3 estrelles     ](https://wordpress.org/support/plugin/blocks-css/reviews/?filter=3)
 *  [  0 valoracions de 2 estrelles     ](https://wordpress.org/support/plugin/blocks-css/reviews/?filter=2)
 *  [  0 valoracions de 1 estrelles     ](https://wordpress.org/support/plugin/blocks-css/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/blocks-css/reviews/#new-post)

[Visualitzeu totes les ressenyes](https://wordpress.org/support/plugin/blocks-css/reviews/)

## Col·laboradors

 *   [ Hardeep Asrani ](https://profiles.wordpress.org/hardeepasrani/)
 *   [ Themeisle ](https://profiles.wordpress.org/themeisle/)

## Suport

Problemes resolts durant els darrers dos mesos:

     2 de 2

 [Visualitza els fòrums de suport](https://wordpress.org/support/plugin/blocks-css/)