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Design HTML for common browsers Usability Guideline

Description

Design web pages for common browsers. This web page uses a version of HTML that few browsers support.

Help

Use the widely supported XHTML 1.0 or HTML 4.01, instead of XHTML 2.0.

Applicable standards

Note: The guidelines.usability.gov website has been down since July 2020, although www.usability.gov is still operating and the PDF version of the guidelines is still available.

Change history

  • 5.36 Jan 2020 Removed - HTML 5 parser algorithm handles unknown versions of HTML.
  • 1.0 Feb 2007 Added.

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

Rule ID: UseGov4.1a