Otos.vn W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include more than one “meta” element with a “charset” attribute.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Attribute “lazyload” not allowed on element “link” at this point.
Attribute “android” not allowed on element “div” at this point.
Attribute “ios” not allowed on element “div” at this point.
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “rel” not allowed on element “img” at this point.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “navigation” role is unnecessary for element “nav”.
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