Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Element “meta” is missing required attribute “content”.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “a” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “a”.
End tag “div” seen, but there were open elements.
Unclosed element “span”.
Element “h3” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “sub-box”.
Element “h2” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “sub-box” was here.
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