<!DOCTYPE html> <html> <head> <title>CSS Scoping Module Level 1 - slot element without distributed nodes must render its fallback content</title> <link rel="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"/> <link rel="help" href="http://www.w3.org/TR/css-scoping-1/#selectors-data-model"> <link rel="match" href="reference/green-box.html"/> </head> <body> <style> my-host { display: block; background-color: red; width: 100px; height: 50px; } .red { background-color: red; } .green { background-color: green; } div { width: 100px; height: 50px; } slot { border: solid 10px red; } </style> <p>Test passes if you see a single 100px by 100px green box below.</p> <my-host></my-host> <div class="red"><slot><div class="green"></div></slot></div> <script> try { var shadowHost = document.querySelector('my-host'); shadowRoot = shadowHost.attachShadow({mode: 'open'}); shadowRoot.innerHTML = '<slot style="border: solid 10px red;">' + '<div style="width: 100%; height: 100%; background-color: green;"></div></slot>'; } catch (exception) { document.body.appendChild(document.createTextNode(exception)); } </script> </body> </html>