- From: Ojan Vafai <ojan@chromium.org>
- Date: Fri, 10 Jan 2014 13:16:57 -0800
- To: Mats Palmgren <mats@mozilla.com>
- Cc: "www-style@w3.org" <www-style@w3.org>, "Tab Atkins Jr." <jackalmage@gmail.com>, David Baron <dbaron@dbaron.org>, Daniel Holbert <dholbert@mozilla.com>, Elliott Sprehn <esprehn@chromium.org>
- Message-ID: <CANMdWTtjDAnpR3EYB=dtWT=GF39L=K-fpPxsiW0b+URBVW-JuQ@mail.gmail.com>
On Thu, Jan 9, 2014 at 5:46 PM, Robert O'Callahan <robert@ocallahan.org> wrote: > I agree this can be confusing, but the Webkit behavior of pushing > bottom-padding down below the bottom of the children is also confusing. > It's also ill-specified because you'll have to specify exactly what the > "bottom of the children" means. It's also inconsistent to move the > bottom-padding down but not move the right-padding right. > Yup. That's why I'd like to change Blink to match the IE7 behavior of showing the padding on all four sides if overflow != visible. On Thu, Jan 9, 2014 at 5:57 PM, Mats Palmgren <mats@mozilla.com> wrote: > On 01/09/2014 10:33 PM, Ojan Vafai wrote: > > [...] > > > Gecko and IE8+: Padding on the bottom and right get lost. > > No, the padding is there, you just don't see it because it's > overlapped by the inner DIV in your example. > > Perhaps it helps to think about what happens if you change > overflow:scroll in your example to overflow:hidden -- > note that no content is clipped by that... > I see what your saying. The Gecko rendering makes a bit more sense to me when I consider the overflow:visible case. > Now change it to overflow:auto -- are you suggesting there > should be scrollbars in this case? even though no content > were clipped? > Yes. > We fixed Gecko because the old rendering violates the > Box Model: http://www.w3.org/TR/CSS2/box.html > and 11.1: > http://www.w3.org/TR/CSS21/visufx.html#overflow-clipping > > FWIW, I find the spec and the current layout in Gecko to be > entirely logical and consistent. > overflow:auto/scroll/hidden already do something different than overflow:visible in all browsers. The background of the container div gets expanded out to the edge of the overflow. I can now see the mental model in which the Gecko behavior makes sense, but I don't think that's the one that most web developers have in their heads. It certainly has surprised everyone I've shown this example to. /Mats > > > > [...] > > > <style> > > #scrollable { > > padding: 100px; > > overflow: scroll; > > background: green; > > height: 200px; > > width: 200px; > > } > > #item { > > width: 300px; > > height: 300px; > > background: red; > > } > > </style> > > <div id="scrollable"> > > <div id="item"></div> > > </div> > >
Received on Friday, 10 January 2014 21:17:47 UTC