Congrats on shipping the 2nd Beta!<p>My favorite part of Bootstrap 4 is actually its newly included CSS reset Reboot [0]. It's built on Normalize, but also provides a set of very compelling improvements like making use of the native font stack, a bunch of very sensible spacing and layout adjustments, and built-in optimizations for touch responsiveness (removing the 300ms delay). I'm definitely going to be trying it out on my next project regardless of whether or not it uses Bootstrap itself.<p>With that said, I don't mean to rain on the parade, but I've been gradually deviating away from using CSS frameworks for my projects, not because I don't _want_ to use them, but rather because most CSS frameworks don't seem to mix naturally with component-oriented CSS-in-JS libraries like glamorous [1], which is my preferred way to work with styling these days.<p>If I do include a CSS framework, I end up having to use a mix of custom component-scoped styles and global CSS classes from these frameworks, and those CSS classes may have margins and cascading effects that reach into children. This breaks component-level style isolation, and makes the styling of children much harder to reason about, which defeats much of the purpose of using component-oriented CSS to begin with.<p>What I really want to do is to import styles from a well designed CSS framework _as a JS module_ (but I'm willing to accept anything that's properly namespaced and isolated, like CSS Modules), and compose them with my own styles without worrying about a polluted global namespace or styles from parents reaching into children/vice versa or fighting with specificity issues.<p>So far, I haven't found any CSS frameworks that fit the bill, but Tachyons [2] seems like it could be close enough (by emphasizing modular, low specificity, shallowly cascading styles) that I could maybe just run it through a CSS to JS compiler like native-css [3] and import its classes and compose them as I would with any other JS style object. This is something I'm going to experiment with soon enough, but I'd love to hear if others have any thoughts/experiences they'd like to share on using CSS frameworks with component-oriented CSS.<p>[0] <a href="https://getbootstrap.com/docs/4.0/content/reboot/" rel="nofollow">https://getbootstrap.com/docs/4.0/content/reboot/</a><p>[1] <a href="https://glamorous.rocks/" rel="nofollow">https://glamorous.rocks/</a><p>[2] <a href="http://tachyons.io/" rel="nofollow">http://tachyons.io/</a><p>[3] <a href="https://github.com/raphamorim/native-css" rel="nofollow">https://github.com/raphamorim/native-css</a>