Jrmcoaching.com.br W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “"” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “” 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.
Bad value “_black” for attribute “target” on element “a”: Reserved keyword “black” used.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “iframe” at this point.
Attribute “name” not allowed on element “div” at this point.
Attribute “href” not allowed on element “div” at this point.
Bad value “” for attribute “id” on element “textarea”: An ID must not be the empty string.
The “big” element is obsolete. Use CSS instead.
Duplicate ID “”.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
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