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Adding Block Styles to an ACF Custom Block

  • Hi,

    I’ve created a block using acf_register_block_type within a custom plugin using the init hook to run my function creating blocks. The goal is to replace the Spacer block with a series of set options for spacing to give a uniform appearance through the site.

    ‘name’ => ‘spacer’,
    ‘title’ => __(‘Spacer’),
    ‘description’ => __(‘A block displaying a blank space.’),
    ‘category’ => ‘layout’,
    ‘icon’ => ‘editor-expand’,
    ‘keywords’ => array( ‘spacer’ ),
    ‘render_template’ => ‘template-parts/blocks/spacer/spacer.php’,
    ‘supports’ => array(
    ‘align’ => false

    There doesn’t seem to be a way to add additional styles here.

    I’ve tried adding them using the wp.blocks.registerBlockStyle function within a js file. This is enqueued using the enqueue_block_editor_assets hook.

    wp.blocks.registerBlockStyle(‘layout/spacer’, {
    wp.blocks.registerBlockStyle(‘layout/spacer’, {

    Unfortunately, the styles don’t show up when I select my new block in the CMS. I think the js file must be running before the new block has been registered.

    Has anyone encountered this situation before?

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