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[csswg-drafts] [css-images] Clarification about `Nx` as <resolution> value in image-set() is needed

From: Roman Dvornov via GitHub <sysbot+gh@w3.org>
Date: Sun, 11 Sep 2016 18:09:08 +0000
To: public-css-archive@w3.org
Message-ID: <issues.opened-176256384-1473617346-sysbot+gh@w3.org>
lahmatiy has just created a new issue for 
https://github.com/w3c/csswg-drafts:

== [css-images] Clarification about `Nx` as <resolution> value in 
image-set() is needed ==
Current syntax for `image-set()` is:

```
image-set() = image-set( <image-set-option># )
<image-set-option> = [ <image> | <string> ] <resolution>
```

Where 
[`<resolution>`](https://drafts.csswg.org/css-values-3/#resolution-value)
 refers to `CSS Values and Units Module Level 3` where it described as
 dimension with `dpi`, `dpcm` or `dppx` unit. However in example below
 we can see (that even works in some browsers):

```
background-image: image-set( "foo.png" 1x,
                             "foo-2x.png" 2x,
                             "foo-print.png" 600dpi );
```

I can't find reference where it says that dimension with `x` unit can 
be used as `<resolution>`. Looks like this is `image-set()` specific 
or I'm wrong. In any case, clarification is needed here.

Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/461 using your GitHub 
account
Received on Sunday, 11 September 2016 18:09:15 UTC

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