One unfortunate side effect of things like Tailwind CSS is that some folks with a single-minded focus on looks are now using only the Tailwind class names, but you can do both. If before you'd have written something like class="video-thumbnail" and styled the content with a class selector in your CSS, but now you've adopted Tailwind and have excised all the descriptive class name from the content (rather than just rming your stylesheet and adding Tailwind classes to whatever class names are already there), then please put the descriptive class names back in! And if you have colleagues submitting patches that remove class names because you're migrating to Tailwind, tell them to use Tailwind classes in a way that adds to the classification instead of as a replacement for traditional, descriptive class names.
(A similar thing happens with CSS compilers. The autogenerated stuff served up on podcasts.google.com is nasty, for example.)