Doctorsnews.co.kr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
The element “header” must not appear as a descendant of the “header” element.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Duplicate ID “list_4”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
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.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “list_4” was here.
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