Rule: main landmark: at least one

• A main landmark provides a navigation point to the primary content of the page for users of assistive technologies.
• Most pages only need one main landmark, but in the case of portals or mashups, there may be more than one main landmark on a "page".

Success Criterion 2.4.1 Bypass Blocks

Other Related Success Criterion:

• Success Criterion 1.3.1 Info and Relationships
• Success Criterion 2.4.6 Headings and Labels

• A main element or an element with a role="main" attribute defines a main landmark.
• When there is only one main landmark on the page (the typical case), do not use a label.
• When there is more than one main landmark, use the aria-labelledby or aria-label attribute to describe the content of each.
• If you need to support Microsoft Internet Explorer 8, you must NOT use the main element since the element is supported in the accessibility API, just use role="main" to identify the main landmark.

• Accessible Rich Internet Applications (WAI-ARIA) 1.2 Specification: main role
• HTML5: The MAIN element
• WAI-ARIA Authoring Practices 1.2: Landmarks
• WAI-ARIA Authoring Practices 1.2: Landmark Example
• W3C Web Accessibility Tutorials: Page Structure
• ARIA11: Using ARIA landmarks to identify regions of a page
• ARIA13: Using aria-labelledby to name regions and landmarks
• ARIA14: Using aria-label to provide an invisible label where a visible label cannot be used