Win10labo.info W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Element name “g:plusone” cannot be represented as XML 1.0.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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 first occurrence of ID “searchsubmit” was here.
Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “g:plusone” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Attribute “value” not allowed on element “input” at this point.
Duplicate ID “search”.
Duplicate ID “searchform”.
Duplicate ID “s”.
Duplicate ID “searchsubmit”.
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