Title: Blocks CSS: CSS Editor for Gutenberg Blocks
Author: Hardeep Asrani
Published: <strong>14. februara 2019</strong>
Last modified: 12. awgusta 2026

---

Tykače pytać

![](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

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

[Sćahnyć](https://downloads.wordpress.org/plugin/blocks-css.3.2.2.zip)

 * [Podrobnosće](https://hsb.wordpress.org/plugins/blocks-css/#description)
 * [Pohódnoćenja](https://hsb.wordpress.org/plugins/blocks-css/#reviews)
 * [Wuwiće](https://hsb.wordpress.org/plugins/blocks-css/#developers)

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

## Wopisanje

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.

## Fota wobrazowki

[⌊CSS Editor⌉⌊CSS Editor⌉[

CSS Editor

[⌊CSS Editor⌉⌊CSS Editor⌉[

CSS Editor

## Pohódnoćenja

![](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. februara 2026 1 reply

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. nowembra 2025 1 reply

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. nowembra 2025 1 reply

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. julija 2024 1 reply

„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. oktobra 2023 1 reply

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. septembra 2023 1 reply

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 🙁

 [ Čitajće 25 pohódnoćenjow ](https://wordpress.org/support/plugin/blocks-css/reviews/)

## Sobuskutkowarjo a wuwiwarjo

„Blocks CSS: CSS Editor for Gutenberg Blocks“ je softwara wotewrjeneho žórła. Slědowacy
ludźo su k tutomu tykačej přinošowali.

Sobuskutkowarjo

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

„Blocks CSS: CSS Editor for Gutenberg Blocks“ je so do 10 rěčow přełožił. Dźakujemy
so [přełožowarjam](https://translate.wordpress.org/projects/wp-plugins/blocks-css/contributors)
za jich přinoški.

[Přełožće „Blocks CSS: CSS Editor for Gutenberg Blocks“ do swojeje rěče.](https://translate.wordpress.org/projects/wp-plugins/blocks-css)

### Na wuwiću zajimowany?

[Přehladajće kod](https://plugins.trac.wordpress.org/browser/blocks-css/), hladajće
do [SVN-repozitorija](https://plugins.svn.wordpress.org/blocks-css/) abo abonujće
[wuwiwanski protokol](https://plugins.trac.wordpress.org/log/blocks-css/) přez [RSS](https://plugins.trac.wordpress.org/log/blocks-css/?limit=100&mode=stop_on_copy&format=rss).

## Protokol změnow

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

## Meta

 *  Version **3.2.2**
 *  Last updated **2 njedźeli**
 *  Active installations **5.000+**
 *  WordPress version ** 6.6 abo nowši **
 *  Tested up to **7.0.4**
 *  PHP version ** 5.4 abo nowši **
 *  Languages
 * [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/)
   a [Swedish](https://sv.wordpress.org/plugins/blocks-css/).
 *  [Přełožće do swojeje rěče](https://translate.wordpress.org/projects/wp-plugins/blocks-css)
 * Tags
 * [block-editor](https://hsb.wordpress.org/plugins/tags/block-editor/)[css editor](https://hsb.wordpress.org/plugins/tags/css-editor/)
   [custom css](https://hsb.wordpress.org/plugins/tags/custom-css/)[design](https://hsb.wordpress.org/plugins/tags/design/)
   [gutenberg](https://hsb.wordpress.org/plugins/tags/gutenberg/)
 *  [Rozšěrjeny napohlad](https://hsb.wordpress.org/plugins/blocks-css/advanced/)

## Pohódnoćenja

 4.9 out of 5 stars.

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

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

[See all reviews](https://wordpress.org/support/plugin/blocks-css/reviews/)

## Sobuskutkowarjo

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

## Podpěra

Rozrisane problemy zańdźeneju dweju měsacow:

     1 z 1

 [Forum pomocy pokazać](https://wordpress.org/support/plugin/blocks-css/)