Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Attribute “lang_code” not allowed on element “a” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “slideshowtracker”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “img” is missing required attribute “src”.
The element “button” must not appear as a descendant of the “a” element.
No “p” element in scope but a “p” end tag seen.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.
The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The first occurrence of ID “slideshowtracker” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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