Errors:
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Attribute “info” not allowed on element “a” at this point.
Attribute “1” not allowed on element “a” at this point.
Attribute “2” not allowed on element “a” at this point.
Attribute “3” not allowed on element “a” at this point.
Attribute “4” not allowed on element “a” at this point.
Attribute “5” not allowed on element “a” at this point.
Attribute “6” not allowed on element “a” at this point.
Attribute “grade” not allowed on element “a” at this point.
Attribute “7” not allowed on element “a” at this point.
Attribute “8” not allowed on element “a” at this point.
Attribute “embarc” not allowed on element “a” at this point.
Attribute “math” not allowed on element “a” at this point.
Attribute “curriculum” not allowed on element “a” at this point.
Attribute “standards” not allowed on element “a” at this point.
Attribute “resources” not allowed on element “a” at this point.
Attribute “manipulatives” not allowed on element “a” at this point.
Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “allow” not allowed on element “iframe” at this point.
Attribute “you” not allowed on element “a” at this point.
Attribute “kaudan721” not allowed on element “a” at this point.
Attribute “for” not allowed on element “a” at this point.
Attribute “the” not allowed on element “a” at this point.
Attribute “amazing” not allowed on element “a” at this point.
Attribute “eurekamath” not allowed on element “a” at this point.
Attribute “google” not allowed on element “a” at this point.
Attribute “slides” not allowed on element “a” at this point.
Warnings:
Attribute “1” is not serializable as XML 1.0.
Attribute “2” is not serializable as XML 1.0.
Attribute “3” is not serializable as XML 1.0.
Attribute “4” is not serializable as XML 1.0.
Attribute “5” is not serializable as XML 1.0.
Attribute “6” is not serializable as XML 1.0.
Attribute “7” is not serializable as XML 1.0.
Attribute “8” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
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