css-scoping-shadow-host-with-before-after.html (1435B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title>CSS Scoping Module Level 1 - ::before and ::after pseudo elements' contents on a shadow host must be rendered</title> 5 <link rel="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"/> 6 <link rel="help" href="http://www.w3.org/TR/css-scoping-1/#selectors-data-model"> 7 <link rel="match" href="reference/green-box.html"/> 8 </head> 9 <body> 10 <style> 11 my-host { 12 display: block; 13 width: 100px; 14 height: 100px; 15 background: red; 16 } 17 my-host::before { 18 display: block; 19 content: ""; 20 width: 100px; 21 height: 25px; 22 background: green; 23 } 24 my-host::after { 25 display: block; 26 content: ""; 27 width: 100px; 28 height: 25px; 29 background: green; 30 } 31 </style> 32 <p>Test passes if you see a single 100px by 100px green box below.</p> 33 <my-host> 34 <div>FAIL</div> 35 </my-host> 36 <script> 37 38 try { 39 var shadowHost = document.querySelector('my-host'); 40 shadowRoot = shadowHost.attachShadow({mode: 'open'}); 41 shadowRoot.innerHTML = '<div style="width: 100px; height: 50px; background: green"></div>'; 42 } catch (exception) { 43 document.body.appendChild(document.createTextNode(exception)); 44 } 45 46 </script> 47 </body> 48 </html>