Centralops.net W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Attribute “border” not allowed on element “frameset” at this point.
Attribute “frameborder” not allowed on element “frameset” at this point.
Attribute “framespacing” not allowed on element “frameset” at this point.
The “frameset” element is obsolete. Use the “iframe” element and CSS instead, or use server-side includes.
Attribute “target” not allowed on element “frame” at this point.
Attribute “topmargin” not allowed on element “frame” at this point.
Attribute “leftmargin” not allowed on element “frame” at this point.
Attribute “cols” not allowed on element “frameset” at this point.
The “noframes” element is obsolete. Use the “iframe” element and CSS instead, or use server-side includes.
Warnings:
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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