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Browser-Based Zoom

Environment causes significant amounts of content to be hidden if browser zoom exceeds minimal magnification. Some users with visual disabilities enlarge page content for readability, but enlarging content on a page can sometimes cause layout problems and readability issues.

Example of Issue

Student enlarged page content and is unable to view text. Text becomes hidden or unreadable.

100100%   200150%   200 200%


Guideline 1.4 Distinguishable: Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.
SC 1.4.4 Resize Text (Level AA)

Example of Standard in Action

Student enlarges page content and is able to view text. Text does not because hidden or unreadable.


Locating the Issue in Your Course

Open all pages in your course and enlarge the font in your web browser to 200% by using Ctrl+Plus (plus key key) or:

    • Safari: View > Zoom Text Only
    • Firefox: View > Zoom > Zoom Text Only
    • Internet Explorer: View > Text size
    • Google Chrome: Click on menu > Zoom

Are you able to read the text in the page?

Resources to Align With Standard

WebAIM (Web Accessibility in Mind) provides web accessibility solutions to individuals with disabilities. Links provided will give you information on how to test content scaling to confirm if text used on webpage can be seen when enlarged to 200%.

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