Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
No space between attributes.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “big” element is obsolete. Use CSS instead.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “a” at this point.
Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “button” at this point.
Attribute “src” not allowed on element “button” at this point.
Attribute “xmlns:x” not allowed here.
Attribute “xmlns:i” not allowed here.
Attribute “xmlns:graph” not allowed here.
Bad value “&ns_sfw;” for the attribute “xmlns” (only “http://www.w3.org/2000/svg” permitted here).
Element “sfw” not allowed as child of element “metadata” in this context. (Suppressing further errors from this subtree.)
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Duplicate ID “q”.
Bad value “100%” for attribute “width” on element “video”: Expected a digit but saw “%” instead.
Attribute “name” not allowed on element “video” at this point.
Bad value “” for attribute “name” on element “input”: Must not be empty.
Stray end tag “div”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute with the local name “xmlns:x” is not serializable as XML 1.0.
Attribute with the local name “xmlns:i” is not serializable as XML 1.0.
Attribute with the local name “xmlns:graph” is not serializable as XML 1.0.
Attribute “xmlns” is not serializable as XML 1.0.
The first occurrence of ID “q” was here.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
United States US