Achensee.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “alt” not allowed on element “span” at this point.
The “align” attribute on the “h2” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Bad value “” for attribute “name” on element “input”: Must not be empty.
Bad value “_target” for attribute “target” on element “a”: Reserved keyword “target” used.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
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