Whitechapelgallery.org 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The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Duplicate ID “menu-item-1538”.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “origtxt” not allowed on element “input” at this point.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “film” not allowed on element “img” at this point.
Attribute “international” not allowed on element “img” at this point.
Attribute “-” not allowed on element “img” at this point.
Attribute “whitechapel” not allowed on element “img” at this point.
Attribute “gallery'” not allowed on element “img” at this point.
Duplicate ID “input_3_2”.
Warnings:
The first occurrence of ID “menu-item-1538” was here.
Attribute “-” is not serializable as XML 1.0.
Attribute “gallery'” is not serializable as XML 1.0.
The first occurrence of ID “input_3_2” was here.
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