Khodorkovsky.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
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”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “Layer_1”.
Element “input” with attribute “type” whose value is “button” must have non-empty attribute “value”.
Attribute “height” not allowed on element “a” at this point.
The “scrolling” attribute on the “iframe” element is obsolete.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The “frameborder” attribute on the “iframe” element is obsolete.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The “allowtransparency” attribute on the “iframe” element is obsolete.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.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Warnings:
The first occurrence of ID “Layer_1” was here.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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