demo.html

<!DOCTYPE html>
<html>

<head>
    <meta charset='utf-8'>
    <meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0'>
    <!-- 1. Load webcomponents.min.js for polyfill support. -->
    <script src="bower_components/webcomponentsjs/webcomponents.min.js"></script>
    <!-- 2. Use an HTML Import to bring in the element. -->
    <link href='http://fonts.googleapis.com/css?family=Roboto:500,400italic,100,300,700,300italic,400' rel='stylesheet' type='text/css'>
    <link rel="import" href="imports.html">
    <!-- IMPORTS RESTRICTED TO A SINGLE FILE -->
</head>
<!-- use fullbleed attribute to specify
     the body should fill the viewport -->

<body fullbleed vertical layout>
    <!-- This is the main element -->
    <game-plan></game-plan>

    
</body unresolved>

</html>