Re: UA's implementation of ::selection

It seems preferable to not apply a background
when no background is specified in the
::selection.

Using the default selection background seems
very bad in an accessibility point of view because
the developer is unable to determine which
color will be used (so, the text may end up to be
nearly unreadable in some UA while perdectly
readable in some others, due to UA or OS settings.

The solution of IE and Opera is here to use no
background for selection when no background
is specified. When no text color is specified, the
original color of the text is used instead.


--------------------------------------------------
From: "Boris Zbarsky" <bzbarsky@MIT.EDU>
Sent: Saturday, May 15, 2010 6:10 AM
To: "David Hyatt" <hyatt@apple.com>
Cc: "François REMY" <fremycompany_pub@yahoo.fr>; <www-style@w3.org>
Subject: Re: UA's implementation of ::selection

> On 5/15/10 12:04 AM, David Hyatt wrote:
>> The chosen colors for selection in the absence of any specified pseudo 
>> element come from the platform.  We have both active and inactive 
>> foreground and background colors (so 4 total possible different colors). 
>> If the pseudo element specifies only a background color and not a 
>> foreground color, we'll use the platform foreground color (and vice 
>> versa).  Any specified selection colors in the pseudo element will be 
>> used in both the active and inactive states.
>
> That doesn't really explain the behavior I see with "background: none" vs 
> "background: transparent"... (which should give equivalent specified 
> values, note).
>
> -Boris

Received on Saturday, 15 May 2010 08:17:56 UTC