Acfcs.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The first occurrence of ID “header” was here.
The “textbox” role is unnecessary for an “input” element that has no “list” attribute and whose type is “text”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “box2” was here.
The “charset” attribute on the “script” element is obsolete.
The “type” attribute for the “style” element is not needed and should be omitted.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Errors:
Duplicate ID “header”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “box2”.
Element “g” not allowed as child of element “p” in this context. (Suppressing further errors from this subtree.)
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