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Web Accessibility

(Abbreviated Level A conformance as per WCAG 2.0)

 

Use HTML whenever possible

  • Avoid PDF, DOC, etc.
  • HTML is universal, efficient and doesn't require additional software, readers, etc.
  • Use PDF format when necessary but provide accessible text-based PDF's instead of image-based PDF's (see tutorial).

 

ALT Tags (video tutorial)

  • Concise descriptions of images in context in ALT tags (including all image map hot spots).
  • Use <ALT=””> (null alt attribute) for all unimportant design elements.
  • Descriptive ALT tags are unnecessary for image-based links with link descriptions.

 

Use descriptive links instead of URL links (video tutorial)

  • Concise descriptions of linked content are read by assistive technology instead of long, full, and oft-cryptic URL's.

 

Header Tags (video tutorial)

  • Use header tags (i.e. H1, H2, H3) for logical hierarchical order.
  • H1 is reserved by Canvas for page titles so start with H2 for headings and H3 for subheadings, and so on.

 

Text Equivalents for all Multimedia Elements

  • Transcripts and captions for all video (prerecorded and streaming).
  • Transcripts for all audio.

 

Color Use

  • Use contrasting colors for page design (see tool).
  • Avoid using color as a teaching element (i.e. click the green button for "yes" and the red button for "no").

 

Text Only Pages

  • These are pages used as text equivalent substitutes for pages containing non-text elements.
  • If unavoidable, they must be updated as frequently as primary pages.

 

Resources




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