Thaibinhweb.net W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “search-lightbox” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “button-wrap-inner” was here.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate ID “search-lightbox”.
Duplicate attribute “class”.
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 “section” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
Bad value “” for attribute “srcset” on element “img”: Must contain one or more image candidate strings.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “button-wrap-inner”.
Stray start tag “style”.
Cannot recover after last error. Any further errors will be ignored.
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