

<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../iron-fit-behavior/iron-fit-behavior.html">
<link rel="import" href="../iron-resizable-behavior/iron-resizable-behavior.html">
<link rel="import" href="iron-overlay-backdrop.html">
<link rel="import" href="iron-overlay-manager.html">

<script>
// IIFE to help scripts concatenation.
(function() {
'use strict';

/**
Use `Polymer.IronOverlayBehavior` to implement an element that can be hidden or shown, and displays
on top of other 