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Re: [css3-values] recommendation for pixel units

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Thu, 21 Mar 2013 00:21:21 -0700
Message-ID: <CAAWBYDDrkaJkAnuHoZV_oCLvbrh1Kwv8JLyrK_gy-buVwFqdSw@mail.gmail.com>
To: "Robert O'Callahan" <robert@ocallahan.org>
Cc: James Holderness <j4_james@hotmail.com>, www-style list <www-style@w3.org>
On Wed, Mar 20, 2013 at 10:40 PM, Robert O'Callahan
<robert@ocallahan.org> wrote:
> On Thu, Mar 21, 2013 at 11:49 AM, Tab Atkins Jr. <jackalmage@gmail.com>
> wrote:
>> It generally *is* a good idea to have the px be an integer number of
>> device pixels.
>
> I used to think this was true but I've come to doubt it. Firefox's full-zoom
> feature almost always leads to dev-pixels-per-px being non-integer and it
> seems to cause few problems. Lately we've enabled non-integer ratios by
> default for Windows (7 and Metro) with high-dpi screens and we still seem to
> be having few problems. I think this is true for Firefox on Android as well,
> and we're in the process of configuring FirefoxOS for high-dpi mobile
> devices with non-integer devicePixelRatio.

Interesting!  That's good to know.

~TJ
Received on Thursday, 21 March 2013 07:22:22 GMT

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