Zoo.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray end tag “base”.
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “homepage-highlights”.
The “center” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The first occurrence of ID “homepage-highlights” was here.
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