Luatkhoa.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “gcse:search” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Forbidden code point U+0008.
End tag “br”.
The “center” element is obsolete. Use CSS instead.
Attribute “border” not allowed on element “input” at this point.
Duplicate ID “fb-root”.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
Element name “gcse:search” cannot be represented as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “fb-root” was here.
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