Note 2 It is not recommended that Level AAA conformance be required as a general policy for
                  entire sites because it is not possible to satisfy all Level AAA Success Criteria
                  for some content. 5.2.2 Full pages Conformance (and conformance level) is for full Web page(s) only, and cannot be achieved if part of a Web page is excluded. Note 1 For the purpose of determining conformance, alternatives to part of a page's content
                  are considered part of the page when the alternatives can be obtained directly from
                  the page, e.g., a long description or an alternative presentation of a video. Note 2 Authors of Web pages that cannot conform due to content outside of the author's control
                  may consider a Statement of Partial Conformance . Note 3 A full page includes each variation of the page that is automatically presented by
                  the page for various screen sizes (e.g.