This page is an archive of changes to the knowledge base made in 2021. For the latest changes to the site, refer to the site what's new page.

Changes are listed from most recent to oldest.

June 10, 2021 — Orientation

A new page explaining the problem of constraining the rendering orientation of fixed layout pages is now available.

June 9, 2021 — Expanded Image Coverage

The discussion of image accessibility has been split into multiple pages to allow better coverage of the different issues. There are now separate pages covering image descriptions, images of text, animated graphics, and decorative images. These topics are grouped under the heading Images in the HTML section of the table of contents.

June 4, 2021 — Updated Audio and Video Guidance

The Audio and Video pages have undergone minor review to ensure that all relevant WCAG techniques are linked, that the examples better reflect accessibility requirements, and to more clearly describe the alternatives required for WCAG conformance.

June 3, 2021 — Autocomplete

A new page covering how to use the autocomplete attribute to aid users in filling in forms is now available.

April 15, 2021 — Contributing

Information on how to contribute new pages to the knowledge base is now available. A link to this page is also available at the bottom of each page.

March 19, 2021 — Drop Caps

A new page covering drop caps and the problems the present for users is now available.

March 18, 2021 — Updated Note Reference Guidance

The guidance about using the HTML sup tag for footnote references has been updated. Until there is better support for the doc-noteref role in assistive technologies, using superscript tagging as an extra indication of the nature of the references is acceptable.

February 23, 2021 — Updated Decorative Image Guidance

Added additional clarification about using the none and presentation roles with decorative images.

February 23, 2021 — Updated Landmarks Guidance

Additional examples and frequently asked questions have been added to the page on HTML landmarks to help explain the effect of headings on landmarks.