Attributes for Blocks


This plugin adds additional advanced inspector controls to Gutenberg blocks that allow to add any custom HTML attributes to the block’s front-end output. This allows you to add inline styles to fine-tune the block’s appearance, set aria attributes to improve your site’s accessibility, add data attributes to integrate with any JavaScript modules or even JavaScript DOM event attributes such as onclick, onchange or onload.


  • Adding style attribute to paragraph block


Install via admin dashboard

  1. Go to your WordPress admin dashboard -> Plugins.
  2. Click “Add New”.
  3. Click “Upload Plugin”.
  4. Select the file.
  5. Click “Install Now”.
  6. Activate the plugin from WordPress admin dashboard -> Plugins.

Manual install via FTP upload

  1. Upload the folder “attributes-for-blocks” from file to your WordPress installations ../wp-content/plugins folder.
  2. Activate the plugin from WordPress admin dashboard -> Plugins.


How do I add an attribute?

In your selected block’s inspector controls (Block settings) scroll all the way to the bottom and click on “Advanced”. It should contain a section called “Additional attributes”.
Type an attribute name into the “Add attribute” field and press “Add” to add an attribute for the block. A new input with the attribute’s name should appear below, into which you can optionally insert the attribute value.
Example attributes: style, title, target, class, id, onClick, data-*, aria-*.

How does it work?

For regular blocks, attributes are added to the block save content’s root element, meaning they will be rendered only on the front end and not in the editor. For dynamic blocks the attributes are added via render_callback function and they may also be applied in the editor, depending if the block is rendered server or client side.

Does it work for every block?

It should work with normal blocks that render a valid WP Element that can utilize the blocks.getSaveContent.extraProps filter as well as dynamic blocks that utilize a render_callback. Third party blocks that do something unorthodox may not work.
Known unsupported blocks

Disable block support

The afb_unsupported_blocks filter can be used in your child theme’s functions.php file to disable block support for adding additional attributes.

add_filter('afb_unsupported_blocks', function($blocks) {
    $blocks[] = 'core/button';
    return $blocks;

What happens when I disable this plugin?

Blocks with custom attributes may become invalid, depending on which attributes you’ve added. From there you can recover the block without the custom attributes by clicking “Attempt Block Recovery” or keep the block with custom attributes as HTML by choosing “Convert to HTML”. If you don’t want to risk blocks becoming invalid you need to remove all custom attributes before disabling the plugin.


2023 年 2 月 10 日
This plugin is really good, Gutenberg should have this as part of its core blocks features, I hope good health to the maintainer would be a shame if this plugins stops been maintained since it is so crucial good
2022 年 9 月 24 日
this simple plugin is really necessary to be able to use javascript. thanks a lot!
閱讀全部 13 則使用者評論


以下人員參與了開源軟體〈Attributes for Blocks〉的開發相關工作。


〈Attributes for Blocks〉外掛目前已有 3 個本地化語言版本。 感謝全部譯者為這個外掛做出的貢獻。

將〈Attributes for Blocks〉外掛本地化為台灣繁體中文版


任何人均可瀏覽程式碼、查看 SVN 存放庫,或透過 RSS 訂閱開發記錄



  • Add afb_sanitize_attribute_key and afb_sanitize_attribute_value filters.
  • Catch errors when using invalid characters in attribute name/value.
  • Update @wordpress/* packages.


  • Update @wordpress/* packages.
  • Test with WordPress 6.0.
  • Convert advanced style attribute editor to TypeScript and refactor.
  • Fix duplicate attribute values being output when the block has both JS and PHP render functions.
  • Add GitHub link.
  • Remove src folder from plugin.


  • Add advanced editor for style attribute.
  • Remove jQuery.


  • Fix special character encoding for dynamic blocks.