level: A
Level A is the lowest level for meeting WCAG standards, and it provides the most basic support for web accessibility. Successfully implement every success criterion under Level A to achieve this standard.
WCAG 2.0, 2.1
Level A
4.1.1 Parsing
The markup has been validated and there are no errors, such as duplicate ids, missing tags, and invalid child elements.
WCAG 2.0, 2.1, 2.2
Level A
4.1.2 Name, Role, Value
The semantic meaning of every interactive element (form controls, links, headings, landmarks, tables, and so on) is correct, and each has an accessible name.