Errors:
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
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.
The “center” element is obsolete. Use CSS instead.
The “big” element is obsolete. Use CSS instead.
The “font” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Table columns in range 2…9 established by element “td” have no cells beginning in them.
Start tag “form” seen in “table”.
Element “form” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
Start tag “input” seen in “table”.
Element “input” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
Stray start tag “br”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Stray end tag “form”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Element “h1” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
The “acronym” element is obsolete. Use the “abbr” element instead.
Bad value “follow” for attribute “rel” on element “a”: The string “follow” is not a registered keyword.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
A table row was 9 columns wide and exceeded the column count established by the first row (1).
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Iran IR