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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-scoping/css-scoping-shadow-host-rule.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>CSS Scoping Module Level 1 - :host rules must apply to the shadow host.</title>
<link rel="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"/>
<link rel="match" href="reference/green-box.html"/>
</head>
<body>
<style>
my-host, my-host2, my-host3, my-host4 {
display: block;
width: 100px;
height: 25px;
}
my-host2 {
background: green;
}
my-host3 {
background: red;
color: green;
}
my-host4 {
background: green;
color: green;
}
</style>
<p>Test passes if you see a single 100px by 100px green box below.</p>
<my-host>
<div>FAIL</div>
</my-host>
<my-host2>
<div>FAIL</div>
</my-host2>
<my-host3>
<div>FAIL</div>
</my-host3>
<div class="container">
<my-host4>
<div>FAIL</div>
</my-host4>
</div>
<script>
try {
var shadowHost = document.querySelector('my-host');
var shadowRoot = shadowHost.attachShadow({mode: 'open'});
shadowRoot.innerHTML = '<style> :host { color: green; background: green; } </style><div>FAIL</div>';
shadowHost = document.querySelector('my-host2');
shadowRoot = shadowHost.attachShadow({mode: 'open'});
shadowRoot.innerHTML = '<style> :host { color: red; background: red; } div { color: green }</style><div>FAIL</div>';
shadowHost = document.querySelector('my-host3');
shadowRoot = shadowHost.attachShadow({mode: 'open'});
shadowRoot.innerHTML = '<style> :host { background: green !important; color: green !important; } </style><div>FAIL</div>';
shadowHost = document.querySelector('my-host4');
shadowRoot = shadowHost.attachShadow({mode: 'open'});
shadowRoot.innerHTML = '<style> .container :host { background: red !important; } </style><div>FAIL</div>';
} catch (exception) {
document.body.appendChild(document.createTextNode(exception));
}
</script>
</body>
</html>