Too bad this got closed. Being able to easily add a class name, like `u-bookmark-of` is a pretty big deal. https://github.com/WordPress/gutenberg/issues/13368 (It's why I stick with the classic editor's HTML view, typically.) But we'll find a way.
We're gonna just do it by hand, then ("Edit as HTML"). But it's easy enough to programmatically create, say, a paragraph block with such a link in it, like when we post thru Micropub.
@jan I mean, you could create a plugin that registers some microformatted blocks, but that seems like a bit much. Too bad they didn't consider the esoteric use-case of adding ✨ classes ✨
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