2 <!DOCTYPE html
><html
><body
><xyz
:abc
></xyz
:abc
>
12 <!DOCTYPE html
><html
><body
><xyz
:abc
></xyz
:abc
><span
></span
>
23 <!DOCTYPE html
><html
><html abc
:def
=gh
><xyz
:abc
></xyz
:abc
>
25 15: Unexpected start tag html
35 <!DOCTYPE html
><html xml
:lang
=bar
><html xml
:lang
=foo
>
37 15: Unexpected start tag html
46 <!DOCTYPE html
><html
123=456>
56 <!DOCTYPE html
><html
123=456><html
789=012>
67 <!DOCTYPE html
><html
><body
789=012>