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Error Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier. Found 36 times on this site.
Error The “itemprop” attribute was specified, but the element is not a property of any item. Found 35 times on this site.
Error No space between attributes. Found 30 times on this site.
Error Bad value for attribute “href” on element “a”: Illegal character in query: space is not allowed. Found 25 times on this site.
Error Attribute “s” not allowed on element “meta” at this point. Found 24 times on this site.
Error CSS: “color”: Parse Error. Found 24 times on this site.
Error Attribute “and” not allowed on element “meta” at this point. Found 22 times on this site.
Error An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images. Found 20 times on this site.
Error Attribute “to” not allowed on element “meta” at this point. Found 16 times on this site.
Error The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control. Found 15 times on this site.
Error Duplicate attribute “and”. Found 14 times on this site.
Error Attribute “in” not allowed on element “meta” at this point. Found 12 times on this site.
Error Attribute “the” not allowed on element “meta” at this point. Found 12 times on this site.
Error Attribute “a” not allowed on element “meta” at this point. Found 12 times on this site.
Error Attribute “like” not allowed on element “meta” at this point. Found 8 times on this site.
Error Attribute “student” not allowed on element “meta” at this point. Found 8 times on this site.
Error Attribute “be” not allowed on element “meta” at this point. Found 8 times on this site.
Error The “border” attribute on the “table” element is obsolete. Use CSS instead. Found 7 times on this site.
Error Attribute “at” not allowed on element “meta” at this point. Found 6 times on this site.
Error Duplicate ID “media”. Found 6 times on this site.
Error Attribute “on” not allowed on element “meta” at this point. Found 6 times on this site.
Error Attribute “information” not allowed on element “meta” at this point. Found 6 times on this site.
Error CSS: “background”: Parse Error. Found 6 times on this site.
Error Attribute “facilities” not allowed on element “meta” at this point. Found 6 times on this site.
Error Attribute “accommodation,” not allowed on element “meta” at this point. Found 6 times on this site.