CSS frameworks like Tailwind, Bootstrap, Foundation, etc all come with many CSS classes you probably aren't using. This creates huge CSS files unless we use a tool like PurgeCSS to look through our code and remove the unused classes.
Mentioning Users with an @mention is a super common feature. Trix and ActionText are now part of Rails 6 which means we can very easily add support for tagging users with @mentions and other custom attachments in your applications.
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