Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Internal encoding declaration “gb2312” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=gb2312” for attribute “content” on element “meta”: “gb2312” is not a preferred encoding name. The preferred label for this encoding is “gbk”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Element “title” must not be empty.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Attribute “http-equiv” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Element “div” not allowed as child of element “button” 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.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “language_span”.
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
Attribute “src” not allowed on element “meta” at this point.
Element “meta” is missing required attribute “content”.
Element “source” not allowed as child of element “video” in this context. (Suppressing further errors from this subtree.)
Attribute “...” not allowed on element “object” at this point.
Element “object” is missing one or more of the following attributes: “data”, “type”.
Attribute “...” not allowed on element “param” at this point.
Element “param” is missing required attribute “name”.
Element “param” is missing required attribute “value”.
Bad attribute name “...”. Attribute names for the “embed” element must be XML-compatible.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Element “img” is missing required attribute “src”.
Warnings:
The first occurrence of ID “language_span” was here.
Attribute “...” is not serializable as XML 1.0.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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