You'd think this is a joke, but have a look at this comment at https://hacks.mozilla.org/2016/05/css-coding-techniques/comment-page-1/#comment-19925 https://hac

You'd think this is a joke, but have a look at this comment at https://hacks.mozilla.org/2016/05/css-coding-techniques/comment-page-1/#comment-19925 https://hacks.mozilla.org/2016/05/css-coding-techniques/comm... > Now that we’re writing almost all of our html in modular fashion, I have found mix-n-matching pre-defined css classes works the best. i.e. class=”inline-block bg-bbb text-333 padding-5-15″