> It sounds like you're blaming CSS for the shortcomings of the library you're using. ... > Or just use Sass instead! Maybe I was unclear: my gripe is that t

> It sounds like you're blaming CSS for the shortcomings of the library you're using. ... > Or just use Sass instead! Maybe I was unclear: my gripe is that this functionality is such a necessary thing to have, that external non-spec third-party tools have to be used to get this functionality. It is a shortcoming of CSS, because CSS is not providing this functionality that users want. The fact that everyone is using a third party tool to get this functionality only reinforces my point: if everyone is doing it, then it's a shortcoming. > Have a .btn rule that styles all your buttons. Have a .warning one that makes it yellow. Then instead of `<button class="btn-warning">` use `<button class="btn warning">`. I do this, but it ends up being `class="<godawful number of named classes?"` and is prone to breakage when you need to update or modify a theme.