line 14 column 7 - Warning:
isn't allowed in elements line 13 column 5 - Info: previously mentioned line 14 column 7 - Warning: missing
before line 10 column 3 - Info: missing optional end tag line 12 column 5 - Warning: The summary attribute on the element is obsolete in HTML5 line 14 column 7 - Warning: trimming empty
line 21 column 3 - Warning:
element removed from HTML5 line 12 column 5 - Warning:
attribute "summary" not allowed for HTML5 Info: Document content looks like HTML5 Tidy found 6 warnings and 0 errors! One or more empty elements were present in the source document but dropped on output. If these elements are necessary or you don't want this behavior, then consider setting the option "drop-empty-elements" to no. About HTML Tidy: https://github.com/htacg/tidy-html5 Bug reports and comments: https://github.com/htacg/tidy-html5/issues Official mailing list: https://lists.w3.org/Archives/Public/public-htacg/ Latest HTML specification: https://html.spec.whatwg.org/multipage/ Validate your HTML documents: https://validator.w3.org/nu/ Lobby your company to join the W3C: https://www.w3.org/Consortium Do you speak a language other than English, or a different variant of English? Consider helping us to localize HTML Tidy. For details please see https://github.com/htacg/tidy-html5/blob/master/README/LOCALIZE.md