<!DOCTYPE html>
<html>
  <head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
</head>
<body>
<element name="x-button" extends="button">
    <template>
        <button class="{{buttonClass}}" disabled="{{!enabled}}">{{label}}</button>
    </template>
    <script type="application/dart" src="button.html.dart"></script>
</element>
</body>
</html>