Mary Rose Elbambo

<p>BlockGlow adds a “BlockGlow — Custom CSS” panel to the inspector of every block. Use it to scope custom CSS to a single block instance. The plugin stores CSS in the uploads folder (under uploads/blockglow/) and enqueues the generated CSS file when rendering on the front end. If the uploads directory isn’t writable or file write fails, BlockGlow will fall back to outputting inline styles.</p>
<p>Key features:</p>
<ul>
<li>Adds two block attributes to every block: <code>blockglowCustomCSS</code> and <code>blockglowId</code>.</li>
<li>Inspector panel with a CodeMirror-backed code editor (if WordPress provides it) or a fallback textarea supporting Tab and Shift+Tab outdent.</li>
<li>Live preview inside the block editor: custom CSS is scoped to the block in the editor so you can see the effect while editing.</li>
<li>CSS files are saved to <code>wp-content/uploads/blockglow/blockglow-<id>.css</code> and enqueued on the front end as a linked stylesheet; files are removed automatically when you clear the Custom CSS field.</li>
<li>Graceful fallback to inline styles when file writing isn’t possible.</li>
</ul>
<p>How scoping works:</p>
<p>BlockGlow creates a unique <code>blockglowId</code> for each block instance and scopes your CSS with a wrapper selector like:</p>
<pre><code>[data-blockglow-id="bg-xxxxxxx"] { /* your declarations */ }
</code></pre>
<p>For convenience you can use <code>&</code> as the wrapper shorthand in the editor. Example:</p>
<pre><code>& .my-class { color: red; }
</code></pre>
<p>The plugin will replace <code>&</code> with the wrapper selector for both editor preview and front-end output.</p>
<h3>Support</h3>
<p>If you find issues or want improvements (for example: limiting who can edit per-block CSS, collecting styles into a single head include, or adding an admin UI to manage generated CSS files), open an issue in the repository or reply here and I will assist.</p>


BlockGlow — Per-block Custom CSS

Adds a "Custom CSS" inspector panel to every Gutenberg block and saves per-block CSS files to uploads for front-end enqueuing.

YellowPencil

<p>Professional real-time CSS editor for those who want to code CSS.</p>
<h4>Key Features</h4>
<ul>
<li>professional CSS Editor.</li>
<li>Real-time live preview.</li>
<li>Simple UI.</li>
</ul>


Custom CSS Pro


Thanks for making this.



JavaScript support, or similar plugin for JavaScript would be amazing! I know custom JS plugins exist, but they lack the simplicity.


Great work

Professional real-time CSS editor for those who want to code CSS.

BlockGlow — Per-block Custom CSS vs Custom CSS Pro