Something is missing me, but I cannot understand that. I have a simple custom element implemented using polymer:
<polymer-element name="test-elem">
<template>
<content></content>
<div id="container">
<div class="deepinside">
TECK ... CHEST
</div>
</div>
</template>
<script>
Polymer('test-elem', {
applyAuthorStyles: false,
});
</script>
</polymer-element>
Then I use it on a simple page:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
<script src="libs/polymer.min.js"></script>
<link rel="import" href="test-elem.html">
<style>
.deepinside { color: red; }
</style>
</head>
<body>
<test-elem>Hi</test-elem>
</body>
</html>
The content of item div(s class="deepinside") is displayed in red. If I understand correctly, this should not happen (see this document ). Note that I explicitly declared applyAuthorStyles: falsein the element constructor (this is not necessary because this is the default behavior). I don't understand why external CSS affects an element in the DOM shadow. I even tried to explicitly specify the attribute shadowdomin the element definition, but the result is the same.
What am I missing?
FWIW, I am running Chrome version 31.0.1650.57 on OS X 10.7.5.