Adding Custom Gutenberg editor styles in WordPress is a nice touch to any theme, as it allows authors to get a basic preview of their content before it gets published. It seems like a complicated task, but it’s actually pretty simple, once you get started.
Before
After
The PHP
It begins with registering and enqueueing a CSS file in your theme.
The CSS
The CSS is a bit trickier because there are so many blocks and elements to cover. Here is an example that I’ve put together for this demo that can be a starting place for you.
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