line 1 column 1 - Warning: missing declaration
line 7 column 1 - Warning: isn't allowed in
elements
line 6 column 1 - Info: previously mentioned
line 6 column 1 - Warning: The summary attribute on the element is obsolete in HTML5
Info: Document content looks like HTML5
3 warnings, 0 errors were found!
You are recommended to use CSS to specify the font and
properties such as its size and color. This will reduce
the size of HTML files and make them easier to maintain
compared with using elements.
About HTML Tidy: https://github.com/htacg/tidy-html5
Bug reports and comments: https://github.com/htacg/tidy-html5/issues
Or send questions and comments to: https://lists.w3.org/Archives/Public/public-htacg/
Latest HTML specification: http://dev.w3.org/html5/spec-author-view/
Validate your HTML documents: http://validator.w3.org/nu/
Lobby your company to join the W3C: http://www.w3.org/Consortium