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Re: [CSS-TECHS] numbers instead of names, proposal

From: Jo Miller <jo@bendingline.com>
Date: Thu, 17 Jan 2002 10:22:08 -0500
Message-Id: <p0510102db86c93d9c2f2@[]>
To: w3c-wai-gl@w3.org
I agree with your proposal, Wendy.

Thank you for the updated CSS-TECHS issues list.
Regarding Chuck Baslock's question [1], I cannot find a Mac browser 
that the example works in either (Chuck tested it in a variety of 
Windows browsers).

The alternative example below does work in the following browsers:
Mozilla 0.9.7 Mac
IE 5.5 Mac
Opera 5.0b5.465 Mac
iCab 2.5.3 (Mac)
IE 5-6 Windows
Netscape 4.7 Windows (border is only as wide as the text in N4, of course)
Netscape 6.2 Windows
Opera 5 Windows
AOL 6.0 Windows

Someone else may know a shorter and more elegant way to write it, though.

    <TITLE>Redline with style sheets</TITLE>
    <STYLE type="text/css">
         H1 {border-top-width: 2px;
             border-top-style: solid;
             padding-top: 4px;
             border-color: red }
    <H1>Chapter 8 - Auditory and Tactile Displays</H1>
End example.


[1] http://lists.w3.org/Archives/Public/w3c-wai-gl/2001JanMar/0657.html

At 7:22 PM -0500 1/15/02, Wendy A Chisholm wrote:
>I believe the statement (slightly modified to make it more exact) 
>seems to be true:
>"Any browser that supports CSS1 and/or CSS2 stylesheets supports the 
>following 16 color names for use in style sheets (as outlined in 
>CSS1 and CSS2):  aqua, black, blue, fuchsia, gray, green, lime, 
>maroon, navy, olive, purple, red, silver, teal, white, and yellow"
>Therefore, it doesn't necessarily mean they will be supported if 
>using the HTML font element, which isn't being considered in the CSS 
>Techniques document.
>CSS3 has obviously taken it a step further. These 16 seem to be the 
>lowest common denominator. 
>Therefore, I propose modifying the CSS Techniques to read as follows:
>2.1 Color Contrast
>       Use numbers or one of the 16 CSS1/CSS2 color names to specify colors.
>The CSS1/CSS2 color names are:
>aqua, black, blue, fuchsia, gray, green, lime, maroon, navy, olive, 
>purple, red, silver, teal, white, and yellow
>    H1 {color: #808000}
>    H1 {color: rgb(50%,50%,0%)}
>    H1 {color: red}
>End example.
>Deprecated example.
>    H1 {color: aliceblue}
>End example.
>The current draft of <a 
>lists 140 color keywords</a>.  As this document moves through the 
>W3C process and into implementations, we will revisit backwards 
>compatibility issues with this wider palette.
>At 07:36 AM 1/15/02, Jonathan O'Donnell wrote:
>>Hi Wendy, Jo and others
>>The statement does not appear to be true.
>>Section 4.3 of the CSS3 working draft of 5 March 2001
>>includes the X11 color keywords. [1]
>>My understanding is that Opera supports the W3C
>>standards.  Therefore, at this time, Opera only
>>understands the 16 names colours referenced in HTML4.
>>This is supported by an undated note by Sue Sims on
>>the CSS Pointers Group site. [2]
>>According to a post by John Russell (3 Dec 2000)
>>"Amaya renders some but not all of these 140 colors."
>>[3]  I don't know if this has been changed in the last
>>[2]     http://css.nu/pointers/stickynote.html
>>  --- Jo Miller <jo@bendingline.com> wrote:
>>>  Hi Wendy,
>>>  I cannot verify the statement, though I suspect it
>>>  is true, with
>>>  qualifications.
>>  --- Previously, Wendy Chisholm had written:
>>>  >HTML Source lists 140 names
>>>  >
>>>  ><quote>
>>>  >These are in the stylesheet section because older
>>>  browsers will not
>>>  >recognise the words, they require the code. Any
>>>  browser that can do
>>>  >stylesheets can do these colours, so it's safe to
>>>  use them if you're
>>>  >using a style.
>>>  ></quote>
>>>  >
>>>  >Can anyone verify that this statement is true?
>>Jonathan O'Donnell
>  >http://purl.nla.gov.au/net/jod
>>http://my.yahoo.com.au - My Yahoo!
>>- It's My Yahoo! Get your own!
>wendy a chisholm
>world wide web consortium
>web accessibility initiative
>seattle, wa usa

Jo Miller
Received on Thursday, 17 January 2002 10:22:10 UTC

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