Rocket Validator logo
Error CSS: “border”: Parse Error. Found 378 times on this site.
Error CSS: “padding”: Parse Error. Found 378 times on this site.
Error CSS: “margin”: Parse Error. Found 373 times on this site.
Error CSS: “float”: Parse Error. Found 368 times on this site.
Error The “acronym” element is obsolete. Use the “abbr” element instead. Found 154 times on this site.
Error The element “a” must not appear as a descendant of an element with the attribute “role=button”. Found 121 times on this site.
Error Bad value “https://www.st-andrews.ac.uk/~cdn/dpl/1.15.5 /styles/print.css” for attribute “href” on element “link”: Tab, new line or carriage return found. Found 29 times on this site.
Error Bad value “https://www.st-andrews.ac.uk/~cdn/dpl/1.15.5 /styles/screen.css” for attribute “href” on element “link”: Tab, new line or carriage return found. Found 29 times on this site.
Error Bad value “https://www.st-andrews.ac.uk/~cdn/dpl/1.15.5 /scripts/core.min.js” for attribute “src” on element “script”: Tab, new line or carriage return found. Found 29 times on this site.
Error Bad value “” for attribute “id” on element “div”: An ID must not be the empty string. Found 26 times on this site.
Error The “itemprop” attribute was specified, but the element is not a property of any item. Found 24 times on this site.
Error Duplicate ID “”. Found 23 times on this site.
Error The “width” attribute on the “th” element is obsolete. Use CSS instead. Found 22 times on this site.
Error Bad value “” for attribute “aria-controls” on element “h3”: An IDREFS value must contain at least one non-whitespace character. Found 20 times on this site.
Error An element with “role=tab” must be contained in, or owned by, an element with “role=tablist”. Found 20 times on this site.
Error The “border” attribute on the “table” element is obsolete. Use CSS instead. Found 19 times on this site.
Error Bad value “screen,projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification. Found 15 times on this site.
Error No “p” element in scope but a “p” end tag seen. Found 14 times on this site.
Error Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag. Found 13 times on this site.
Error The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead. Found 13 times on this site.
Error Almost standards mode doctype. Expected “<!DOCTYPE html>”. Found 12 times on this site.
Error Stray end tag “div”. Found 12 times on this site.
Error Element “p” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.) Found 11 times on this site.
Error No space between attributes. Found 10 times on this site.
Error Attribute “height” not allowed on element “a” at this point. Found 8 times on this site.