Is there a simple way to add classnames to individual core Gutenberg blocks?

Blocks is a great step toward moving to a web where HTML structurally/functionally describes elements, which are styled elsewhere in CSS. However, this is limited in that blocks cannot be easily classed?

I'd be happy with a plugin that extends existing (or custom) block functionality to include classes and ids.


1 Answer 1


Every block has a field for custom CSS classes in the 'Advanced' panel:

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