Re: Extending Class Proposal

Hi, I haven't heard back from anyone on this, so I wanted to follow up.

I hope the lack of response is because of busyness and not due to a lack of
interest in the topic/proposal. I think the ability to natively extend
classes in CSS would be a huge win.

If any discussion on this topic is happening outside this list, I'd love to
be pointed in that direction.



On Thu, Jan 17, 2013 at 3:56 PM, Philip Walton <philip@philipwalton.com>wrote:

> I recently posted a proposal on my website for how I think CSS
> could/should handle the concept of extending a base class:
> http://philipwalton.com/articles/the-future-of-oocss-a-proposal/
>
> Tab sent me a link to this discussion from August started by David Baron,
> and my proposal basically aligns with method (b) that he suggests:
> http://lists.w3.org/Archives/Public/www-style/2012Aug/0363.html
>
> I've spent a lot of time thinking about this problem and trying to make it
> work with in Sass; I've firmly come to the conclusion that preprocessors
> can't handle this all by themselves. The article goes into a lot of detail
> why.
>
> Anyway, I'd love to be part of any discussion on this topic, which is why
> I'm sending this to the list.
>
> TL;DR for the article:
>
> * Create a new simple selector called the abstract class selector, which
> uses the % sign (Ex: %base-widget { } ). The abstract class selector would
> match any element with a class that extends from it.
>
> * Create a new @ rule called @extends to define the inheritance (Ex:
> @extend .widget < %base-widget; )
>
> The primary reason I think a new simple selector should be created is so
> you can target these elements via JavaScript without having to put the
> classes in the markup.
>
> document.querySelectorAll("#sidebar %base-widget");
>
> It would also allow for extending base classes within media queries, which
> currently Sass can't do.
>
>
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