line 29 column 1 - Info: detected autonomous custom tag <dominos-pizza>; will treat as inline
line 31 column 1 - Info: detected autonomous custom tag <new-inline-element>; will treat as inline
line 17 column 1 - Warning: <pizzerias> is not approved by W3C
line 21 column 1 - Warning: <jets-pizza> is not approved by W3C
line 29 column 1 - Warning: <dominos-pizza> is not approved by W3C
line 31 column 1 - Warning: <new-inline-element> is not approved by W3C
Info: Doctype given is "-//W3C//DTD HTML 4.01 Transitional//EN"
Info: Document content looks like HTML Proprietary
Tidy found 4 warnings and 0 errors!

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/
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English? Consider helping us to localize HTML Tidy. For details please see 
https://github.com/htacg/tidy-html5/blob/master/README/LOCALIZE.md
