Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
End tag “nav” seen, but there were open elements.
Unclosed element “div”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “marquee” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “500px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
The element “button” must not appear as a descendant of the “a” element.
Bad value “50px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “_blank"” not allowed on element “a” at this point.
Bad value “550px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Stray end tag “div”.
The “center” element is obsolete. Use CSS instead.
Bad value “sug_course_level col-md-4” for attribute “for” on element “label”: An ID must not contain whitespace.
The first child “option” element of a “select” element with a “required” attribute, and without a “multiple” attribute, and without a “size” attribute whose value is greater than “1”, must have either an empty “value” attribute, or must have no text content. Consider either adding a placeholder option label, or adding a “size” attribute with a value equal to the number of “option” elements.
Element “style” not allowed as child of element “footer” in this context. (Suppressing further errors from this subtree.)
The “for” attribute of the “label” element must refer to a non-hidden form control.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Attribute “_blank"” is not serializable as XML 1.0.
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