updated alt text advice in HTML spec

Hi all,

I have completed (draft) updates of the following section and subsections
relating to use of the alt attribute and provision of text alternatives


   1. 4.8.1.1 Requirements for providing text to act as an alternative for
   images<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#alt>
   2. 4.8.1.1.1 Examples of scenarios where users benefit from text
   alternatives for
images<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#examples-of-scenarios-where-users-benefit-from-text-alternatives-for-images>
   3. 4.8.1.1.2 General
guidelines<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#general-guidelines>
   4. 4.8.1.1.3 A link or button containing nothing but an
image<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#a-link-or-button-containing-nothing-but-an-image>
   5. 4.8.1.1.4 Graphical Representations: Charts, diagrams, graphs, maps,
   illustrations<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#graphical-representations:-charts,-diagrams,-graphs,-maps,-illustrations>
   6. 4.8.1.1.5 Images of
text<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#images-of-text>
   7. 4.8.1.1.6 Images that include
text<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#images-that-include-text>
   8. 4.8.1.1.7 Images that enhance the themes or subject matter of the
   page content<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#images-that-enhance-the-themes-or-subject-matter-of-the-page-content>
   9. 4.8.1.1.8 A purely decorative image that doesn't add any
information<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#a-purely-decorative-image-that-doesn%27t-add-any-information>
   10. 4.8.1.1.9 Inline
images<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#inline>
   11. 4.8.1.1.10 A group of images that form a single larger picture with
   no links<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#a-group-of-images-that-form-a-single-larger-picture-with-no-links>
   12. 4.8.1.1.11 A group of images that form a single larger picture with
   links<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#a-group-of-images-that-form-a-single-larger-picture-with-links>
   13. 4.8.1.1.12 Images of
Pictures<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#images-of-pictures>
   14. 4.8.1.1.13 Webcam
images<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#webcam-images>
   15. 4.8.1.1.14 When a text alternative is not available at the time of
   publication<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#when-a-text-alternative-is-not-available-at-the-time-of-publication>
   16. 4.8.1.1.15 An image not intended for the
user<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#an-image-not-intended-for-the-user>
   17. 4.8.1.1.16 Icon
Images<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#icon-images>
   18. 4.8.1.1.17 Logos, insignia, flags, or
emblems<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#logos,-insignia,-flags,-or-emblems>
   19. 4.8.1.1.18 CAPTCHA
Images<http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#captcha-images>

Please review and provide feedback in the form of bug reports (file a bug)
https://www.w3.org/Bugs/Public/enter_bug.cgi?comment=&product=HTML%20WG&component=HTML5%20spec


--

Regards

SteveF
HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>