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 value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Attribute “tile” not allowed on element “input” at this point.
Bad value “100%” for attribute “height” on element “img”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “h1” element is obsolete. Use CSS instead.
A numeric character reference expanded to carriage return.
Attribute “handler” not allowed on element “option” at this point.
Attribute “rel” not allowed on element “div” at this point.
Element “option” without attribute “label” must not be empty.
Attribute “alt” not allowed on element “a” at this point.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “main”.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Duplicate ID “sidebar”.
Duplicate ID “portal-column-two”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “main” was here.
The first occurrence of ID “sidebar” was here.
The first occurrence of ID “portal-column-two” was here.
Empty heading.
This document appears to be written in German but the “html” start tag has “lang="en"”. Consider using “lang="de"” (or variant) instead.
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).
Germany DE