Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=ISO-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Duplicate attribute “content”.
Attribute “article:section"” not allowed on element “meta” at this point.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Attribute “value” not allowed on element “input” at this point.
Element “input” is missing required attribute “alt”.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad value “javascript://” for attribute “href” on element “a”: missing } after function body
The “font” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Element “div” not allowed as child of element “ol” 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.
The “big” element is obsolete. Use CSS instead.
End tag “b” violates nesting rules.
No “font” element in scope but a “font” end tag seen.
Stray end tag “a”.
End tag “br”.
Start tag “a” seen but an element of the same type was already open.
End tag “span” seen, but there were open elements.
Unclosed element “b”.
No “b” element in scope but a “b” end tag seen.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Attribute “article:section"” is not serializable as XML 1.0.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Potentially bad value “allow-same-origin allow-scripts allow-pointer-lock allow-forms allow-popups” for attribute “sandbox” on element “iframe”: Setting both “allow-scripts” and “allow-same-origin” is not recommended, because it effectively enables an embedded page to break out of all sandboxing.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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