Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The element “input” must not appear as a descendant of the “a” element.
Bad value “javascript:void();” for attribute “href” on element “a”: syntax error
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “h3” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “270px” for attribute “height” on element “video”: Expected a digit but saw “p” instead.
Bad value “320px” for attribute “width” on element “video”: Expected a digit but saw “p” instead.
Bad value “” for attribute “name” on element “input”: Must not be empty.
Element “g:plusone” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “target” not allowed on element “img” at this point.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Element name “g:plusone” cannot be represented as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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