Cadenanueve.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “http://fonts.googleapis.com/css?family=Advent+Pro:400|Economica:400|Actor:400&subset=latin” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “center” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “center” 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.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “useful-banner-manager-banners-rotation-8”.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
The first occurrence of ID “useful-banner-manager-banners-rotation-8” was here.
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