W3C home > Mailing lists > Public > www-style@w3.org > April 2009

Re: Possible problem with rounded corners

From: Brad Kemper <brad.kemper@gmail.com>
Date: Thu, 30 Apr 2009 07:47:16 -0700
Cc: <www-style@w3.org>
Message-Id: <E7D089F9-C341-4B88-8BE3-D37FDBC27DAC@gmail.com>
To: "Niels Matthijs" <niels.matthijs@internetarchitects.be>
The Working Draft does say say nested items are to be clipped, but so  
far I don't think any implementations are doing that yet. It was a  
more recent change to the Working Draft (a few months ago, as I  
recall), and not without some small disagreement from an implementor.  
Eventually, implementors will adjust to the change and implement that  
part as written, or if no one does then it will be marked as "at risk"  
and eventually taken out of the final spec.

On Apr 30, 2009, at 5:37 AM, Niels Matthijs wrote:

> (repost of my question/remark, apparently the original message was  
> posted in a different thread. Excuse my lack of knowledge of mailing  
> lists and threaded mails, Iíll try to pay more attention next time)
> I was experimenting with the border-radius implementation of Firefox  
> and WebKit and ran into some problems. I checked the ccs3 specs but  
> couldn't find anything about it, so I'll guess I'll just post this  
> here. Again, my apologies if this problem was already raised before  
> and is being worked on right now.
> The problem occurs when elements are nested inside a container with  
> rounded corners. The background of the container behaves well, but  
> the nested elements are still rectangles. So when they are given a  
> background-color, they overlap the rounded corners.
> I made a very simple test page, with a horizontal navigation (4  
> rounded corners) and hover color on the links in the list items.  
> Just hover over the first list item to see the undesired effect.
> http://www.onderhond.com/testpages/rounded-corners.html
> It would be a real shame if this behaviour would still exist when we  
> could finally use the property, as workarounds to fix this are  
> pretty crappy and really mess up the css.
> Greets,
> Niels Matthijs
> Internet Architects
Received on Thursday, 30 April 2009 14:47:58 UTC

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