Chemicalelements.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Legacy doctype. Expected “<!DOCTYPE html>”.
The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Attribute “cellpadding” not allowed on element “td” at this point.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
The “font” element is obsolete. Use CSS instead.
Element “p” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
Element “center” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
The “img” element with the “ismap” attribute set must have an “a” ancestor with the “href” attribute.
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The “language” attribute on the “script” element is obsolete.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The “border” attribute is obsolete.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.
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