button-valid.html (303B)
1 <!DOCTYPE html> 2 <html> 3 <!-- Test: if button has no custom error and is not barred from constraint 4 validation, it should be affected by :invalid pseudo-class. --> 5 <link rel='stylesheet' type='text/css' href='style.css'> 6 <body> 7 <button class='notinvalid'</button> 8 </body> 9 </html>