Puzzlebaron.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “cellspacing” attribute on the “table” element is obsolete.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The “cellpadding” attribute on the “table” element is obsolete.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The “width” attribute on the “table” element is obsolete.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The “border” attribute on the “table” element is obsolete.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The “width” attribute on the “td” element is obsolete.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The “valign” attribute on the “td” element is obsolete. Use CSS instead.
Duplicate ID “search”.
Duplicate ID “searchform”.
Duplicate ID “s”.
Bad value “_new” for attribute “target” on element “a”: Reserved keyword “new” used.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “search” was here.
The first occurrence of ID “searchform” was here.
The first occurrence of ID “s” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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