3 ms·

W3C uses invalid XHTML

• wolfgang42 10y ago
  It seems that this particular mistake (a 'target' attribute in strict mode) is so common that it's the example the validator uses: > This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute)