Errors:
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Attribute “ng-include” not allowed on element “header” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
Bad value “tel:028 38 29 8888” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Bad value “tel:(028) 38225 999” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Text run is not in Unicode Normalization Form C.
Attribute “"” is not serializable as XML 1.0.
This document appears to be written in Vietnamese but the “html” start tag has an empty “lang” attribute. Consider using “lang="vi"” (or variant) instead.
Viet Nam VN