Development Phase
4.1.1 Parsing
In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features.
Description
In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features.
How to Meet
To meet this criterion, ensure that your web content satisfies the requirements outlined in the description. Consider the special cases and notes for a comprehensive understanding.
Benefits
Implementing this criterion improves accessibility for users with various disabilities and enhances the overall user experience for all visitors.