Discourseblog.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “true” for attribute “async” on element “script”.
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
Stray end tag “link”.
CSS: “max-width”: Too many values or values are not recognized.
CSS: “font-size”: only “0” can be a “unit”. You must put a unit after your number.
CSS: “margin-bottom”: “NaNrem” is not a “margin-bottom” value.
CSS: “height”: Too many values or values are not recognized.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “type” not allowed on element “div” at this point.
Attribute “loading” not allowed on element “img” at this point.
Element “hr” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
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