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1.4.8 Visual Presentation – Level AAA

For the visual presentation of blocks of text, a mechanism is available to achieve the following: 

  1. Foreground and background colors can be selected by the user.
  2. Width is no more than 80 characters or glyphs (40 if Chinese, Japanese, or Korean).
  3. Text is not justified (aligned to both the left and the right margins).
  4. Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 1.5 times larger than the line spacing.
  5. Text can be resized without assistive technology up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text on a full-screen window.

Understanding Success Criterion 1.4.8: Visual Presentation

Checklist – System Foundations


Can I customize interface color and contrast?Medium

Checklist – Components


Does the dialog avoid horizontal scrolling (unless cleared with the UX team)?High