4.1.1 - Parsing
The intent of this success criterion is to ensure that user agents, including assistive technologies, can accurately interpret and parse content. If the content cannot be parsed into a data structure, then different user agents may present it incorrectly or fail to present at all.
Ways to meet the criterion
In order to ensure that content can be easily parsed by assistive technologies, ensure that the markup:
- has complete start and end tags
- is nested according to their specifications
- does not contain duplicate attributes
- contains unique IDs EXCEPT where the specifications allow these features