Vspj.cz W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
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.
Bad value “pruvodce” for attribute “rel” on element “a”: The string “pruvodce” is not a registered keyword.
Attribute “alt” not allowed on element “i” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Text run is not in Unicode Normalization Form C.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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