Lavr.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “id”.
Duplicate ID “addLinks”.
Duplicate ID “linkadd”.
The element “button” must not appear as a descendant of the “a” element.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “p” not allowed as child of element “h4” in this context. (Suppressing further errors from this subtree.)
Warnings:
The first occurrence of ID “addLinks” was here.
The first occurrence of ID “linkadd” was here.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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