Unknown HTML attribute Web Standard

Description

Unknown attribute.

Help

This happens when the version of HTML used on this page doesn’t support an attribute with this name. This can happen if the attribute is misspelled, is uppercase or mixed case in XHTML, or isn’t supported by some HTML versions. For example, HTML 4 DOCTYPEs don’t allow HTML 5 attributes and Strict DOCTYPEs don’t allow stylistic attributes which were present in earlier versions of HTML.

Applicable standards

• HTML Validation

Change history

• 1.0 Feb 2007 Added.

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

Rule ID: W3cHtml108-BaseRule