- From: Neil King <Neil.King@visionaustralia.org>
- Date: Sat, 18 Aug 2012 05:47:25 +1000
- To: Jan Eric Hellbusch <hellbusch@2bweb.de>
- CC: "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Hi Jan Many thanks. I certainly agree that there is an issue aside from the contrast one with using CSS. We have always provided solutions for screen readers; alt for CSS as a last resort to providing images in HTML. However, we have not a sufficient alternative solution to CSS sprites and high contrast mode... Yet All the best Neil --- Neil King National Manager Accessibility Consulting P: 02 9334 3547 E: neil.king@visionaustralia.org On 18/08/2012, at 5:14, "Jan Eric Hellbusch" <hellbusch@2bweb.de> wrote: Neil, > Does anyone know of an easy way around this for complex and large websites > that are not planning a redesign? Steve provided some great insights in his article > 'High Contrast Proof CSS Sprites' via the before: pseudo element > (http://www.paciellogroup.com/blog/2010/01/high-contrast-proof-css-sprites/ > <http://www.paciellogroup.com/blog/2010/01/high-contrast-proof-css- > sprites/> ). Anyone have any advances on this or similar solutions they > recommend? You will find some basic solutions here: * Links: http://www.barrierefreies-webdesign.de/knowhow/symbole/download/css-sprites- mit-links-und-content.zip * Buttons: http://www.barrierefreies-webdesign.de/knowhow/symbole/download/css-sprites- mit-button-und-content.zip There is a lot to write about icons, CSS sprites and accessibility. Unfortunately, I can only offer it in German: http://www.barrierefreies-webdesign.de/knowhow/symbole/ The bottom line is that * yes, you can get your icons displayed in high contrast mode with CSS adaptions * but even if you do, there are still considerations needed to be made for screenreader usage. If icons and other images are not purely presentational, then they belong in HTML with alternate text. And if they are purely presentational, then there are still some accessibility reasons to keep them in HTML. As far as your question is concerned: You are referring to 1.1.1 and that is about alternate text, not high contrast mode. If images require an alternate text and are thus placed in HTML, then they will be displayed in high contrast mode as well. HTH, Jan -- Jan Eric Hellbusch Tel.: +49 (231) 86436760 oder +49 (163) 3369925 Web: http://2bweb.de Twitter: www.twitter.com/2bweb -- Das Buch über barrierefreies Webdesign: "Barrierefreiheit verstehen und umsetzen - Webstandards für ein zugängliches und nutzbares Internet" 812 Seiten, Dpunkt Verlag (2011) http://www.barrierefreies-webdesign.de/dpunkt/ Come along to Vision Australia’s Texpo to discover the latest technology and services for people who are blind or have low vision. This year Texpo is being held in: Melbourne, Friday 24 August and Saturday 25 August, Sydney Friday 31 August and Saturday 1 September and Brisbane Friday 7 September and Saturday 8 September. For further information please call Vision Australia on 1300 84 74 66, visit www.visionaustralia.org/texpo or email to info@visionaustralia.org. You can also find us on Facebook and Twitter. ABN: 67 108 391 831 ACN: 108 391 831 Vision Australia is a partnership between people who are blind, sighted or have low vision. We are united by our passion that people who are blind or have low vision will have access to and fully participate in every part of life they choose. This email (including its attachments) is confidential and may contain legally privileged material or personal information. If you are not a named addressee you must not use, disclose, copy, disseminate or print the email or any information in it. If you have received this email in error please notify us immediately and delete the email and any copies. Vision Australia is not responsible for any changes made to a document other than those made by Vision Australia or for the effect of the changes to the document's meaning. Vision Australia accepts no liability for any damage caused by this email or its attachments due to viruses, interference, interception, corruption or unauthorised access. ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________
Received on Friday, 17 August 2012 19:48:12 UTC