Create content that can be presented in different ways (for example simpler layout) without losing information or structure
听
What does this mean?
Sighted users, like myself, often use visual cues to understand how information is organized and how it should be read. But what would happen if you were unable to perceive those visual cues? The goal of this guideline is to make visual information perceptible and meaningful to those using assistive technologies.
For example, section headings usually look different than paragraph text. They鈥檙e generally larger, and sometimes have formatting differences like bolding, centre alignment, or a different font.
When building a web page, you can make听text look like a heading by changing the font size and text alignment. A听visual user will have no trouble using these changes to identify听the headings. However, someone using a screen reader will not be able to interpret these as听headings.
Don't just change the size of your heading text, centre it or make it bold! As a best practice, you should format your headings using the heading options in the WMS. This will ensure that tags -听hidden pieces of information not visually available - will be added to听provide information for screen reader users.
Additionally, if order of content is meaningful, then you should make sure to use听an HTML structure听that will communicate that order (e.g. table, ordered list). For example,听a screen reader will read a column from top to bottom before moving on to the next column.听If you use columns to simulate a block or table layout with rows of content (which sighted users would read from听left to right), this could be very confusing for a screen reader user.
If the order of content doesn't really matter, then it's okay if different users consume things in a different order.
Lastly, ensuring that information is adaptable means that you aren鈥檛 relying exclusively on visual cues to communicate information听(e.g. a title shown in red means one thing, the same title in green means something else). Use of colour and shape can enhance ability to perceive information, but it shouldn鈥檛 be the only indication.
What to do
This list is not exhaustive, but highlights some key situations when these guidelines can be applied:
- Forms with required fields: Use an asterisk (*) to indicate听required fields and include the instructions 鈥渁ll required fields are marked with an asterisk (*)鈥�. In the WMS, an asterisk is automatically added to all required fields. Additionally, you could add the text 鈥渞equired鈥� to the required fields'听labels.
- Tables: Tables should only be used to display text data. Table headers need to be tagged properly. You can read more about what this means and how to do it well in the resource section below.
- Documents: Use existing听heading and list formatting options in the WYSIWYG, so that these elements are tagged appropriately for screen readers.
- Buttons:听Use real buttons with clear, informative labels and pay attention to your formatting.听If the button needs to be read in sequence with another piece of content - e.g., a "learn more" button that belongs to a teaser - then you'll want to keep the button and related content in the same column, div, or block. (And remember, you should听never听use a linked image to simulate a button - use a听ghost button听instead.)
Accessibility Advisor鈥檚 Suggested Resources
Implementing these guidelines in websites at 海角社区 may require some knowledge of HTML programming. Here are a few technical resources that can help brush up your skills in this area:
- : this site outlines the full set of success and failure criteria for this 1.3 guideline. It has way more information than what I've included in this article, and would be worth consulting if you are a programmer.
- : This web accessibility tutorial by W3C guides you through what HTML needs to be included when building听tables, so that headers are appropriately tagged and read in the correct order by a screen reader.
- The University of Washington has a helpful . You can build on this knowledge using Microsoft's tutorial on
- Drupal, 海角社区鈥檚 Web Management System, has information on . I also recommend article.
Rachel Desjourdy is the Accessibility Advisor in the Office of the Provost and Vice-Principal (Academic). She is available to support the 海角社区 community in becoming more inclusive and accessible, and welcomes questions and feedback at rachel.desjourdy [at] mcgill.ca.
