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Re: 'all' and the system focus outline

From: Simon Pieters <simonp@opera.com>
Date: Tue, 17 Mar 2015 10:19:15 +0100
To: "Tab Atkins Jr." <jackalmage@gmail.com>, "Cameron McCormack" <cam@mcc.id.au>
Cc: "www-style list" <www-style@w3.org>, "Alice Boxhall" <aboxhall@google.com>
Message-ID: <op.xvmxidkzidj3kv@simons-mbp>
On Tue, 17 Mar 2015 06:06:23 +0100, Cameron McCormack <cam@mcc.id.au>  
wrote:

> So, the HTML spec would require rules such as:
>
>   :focus { outline: auto; }
>   p { display: block; }


> For rules in the spec that are suggestions or where the specific values
> are UA dependent, such as this one:
>
>   mark { background: yellow; color: black; }

The HTML spec makes no distinction between these, they are both required  
for the "Visual user agents that support the suggested default rendering"  
conformance class.

[[
User agents that are designated as supporting the suggested default  
rendering must, while so designated, implement the rules in the rendering  
section that that section defines as the behaviour that user agents are  
expected to implement.
]]
https://html.spec.whatwg.org/multipage/infrastructure.html#conformance-classes

-- 
Simon Pieters
Opera Software
Received on Tuesday, 17 March 2015 09:19:46 UTC

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