Don’t use absolute units in HTML Accessibility Checkpoint

Description

Use relative rather than absolute units in HTML attributes.

Help

Use percentages rather than pixels for sizing frames and tables. Low-vision users often use the “large fonts” mode of Windows, which makes each pixel larger than usual. This usually causes problems with pixel based layouts, which also perform badly on handheld and widescreen displays. Percentage values “stretch” according to screen size and work on a large range of display sizes.

Applicable standards

• WCAG 1.0 (Success Criteria: 3.4 level AA)

Change history

• 6.46 Sep 2022 Removed - WCAG 1.0 guidelines are obsolete.
• 5.5 May 2014 Fixed false positive on zero sized frames.
• 1.0 Feb 2007 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: AccWcag1-3.4.2