1 <?xml version="1.0" encoding="UTF-8"?> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <style> 5 .block { 6 width: 100px; 7 height: 100px; 8 background-color: green; 9 } 10 </style> 11 <script src="resources/print.js"></script> 12 <script> 13 function test() 14 { 15 if (window.layoutTestController) 16 layoutTestController.dumpAsText(); 17 18 if (document.getElementById('block').offsetWidth == 100) 19 print("PASS", "green"); 20 else 21 print("FAIL", "red"); 22 } 23 </script> 24 </head> 25 <body onload="test()"> 26 <div id="block" class="block"></div> 27 <script> 28 function beforeLoadFunc() 29 { 30 event.preventDefault(); 31 } 32 33 document.addEventListener("beforeload", beforeLoadFunc, true); 34 35 var pi = document.createProcessingInstruction("xml-stylesheet", "type=\"text/css\" href=\"resources/fail.css\""); 36 document.insertBefore(pi, document.documentElement); 37 </script> 38 <hr/> 39 <div id="console"></div> 40 </body> 41 </html> 42