Checkpoint 1.23 - Mobile-PDA

Relatively sized text allows users to have some control over the size of font they wish to view by adjusting settings in the browser, and allows the mobile browser to adapt content to fit the display. Absolute sized text cannot be manipulated in the same manner. The screen resolution of the user's browser may make the text difficult to read if absolute sizing is used and the user is not able to adjust text size manually.

Requirement

Relative units have been used instead of absolute units for text

Recommendation

Use percentage and relative measures such as em and ex.

Checking Tool

View the source code of that page, and especially the contents of the stylesheet, and ensure there are no absolute units used, such as pt, px.

Information Source

The original source of this information is located on the W3C web site  (www.w3.org/TR/WCAG10-TECHS/#tech-relative-units)