diff --git a/node_modules/material-design-lite/src/animation/demo.js b/node_modules/material-design-lite/src/animation/demo.js
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+/**
+ * @license
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Class constructor for Animation MDL component.
+ * Implements MDL component design pattern defined at:
+ * https://github.com/jasonmayes/mdl-component-design-pattern
+ * @param {HTMLElement} element The element that will be upgraded.
+ */
+function DemoAnimation(element) {
+  'use strict';
+
+  this.element_ = element;
+  this.position_ = this.Constant_.STARTING_POSITION;
+  this.movable_ = this.element_.querySelector('.' + this.CssClasses_.MOVABLE);
+  // Initialize instance.
+  this.init();
+}
+
+/**
+ * Store strings for class names defined by this component that are used in
+ * JavaScript. This allows us to simply change it in one place should we
+ * decide to modify at a later date.
+ * @enum {string}
+ * @private
+ */
+DemoAnimation.prototype.CssClasses_ = {
+  MOVABLE: 'demo-animation__movable',
+  POSITION_PREFIX: 'demo-animation--position-',
+  FAST_OUT_SLOW_IN: 'mdl-animation--fast-out-slow-in',
+  LINEAR_OUT_SLOW_IN: 'mdl-animation--linear-out-slow-in',
+  FAST_OUT_LINEAR_IN: 'mdl-animation--fast-out-linear-in'
+};
+
+/**
+ * Store constants in one place so they can be updated easily.
+ * @enum {string | number}
+ * @private
+ */
+DemoAnimation.prototype.Constant_ = {
+  STARTING_POSITION: 0,
+  // Which animation to use for which state. Check demo.css for an explanation.
+  ANIMATIONS: [
+    DemoAnimation.prototype.CssClasses_.FAST_OUT_LINEAR_IN,
+    DemoAnimation.prototype.CssClasses_.LINEAR_OUT_SLOW_IN,
+    DemoAnimation.prototype.CssClasses_.FAST_OUT_SLOW_IN,
+    DemoAnimation.prototype.CssClasses_.FAST_OUT_LINEAR_IN,
+    DemoAnimation.prototype.CssClasses_.LINEAR_OUT_SLOW_IN,
+    DemoAnimation.prototype.CssClasses_.FAST_OUT_SLOW_IN
+  ]
+};
+
+/**
+ * Handle click of element.
+ * @param {Event} event The event that fired.
+ * @private
+ */
+DemoAnimation.prototype.handleClick_ = function(event) {
+  'use strict';
+
+  this.movable_.classList.remove(this.CssClasses_.POSITION_PREFIX +
+      this.position_);
+  this.movable_.classList.remove(this.Constant_.ANIMATIONS[this.position_]);
+
+  this.position_++;
+  if (this.position_ > 5) {
+    this.position_ = 0;
+  }
+
+  this.movable_.classList.add(this.Constant_.ANIMATIONS[this.position_]);
+  this.movable_.classList.add(this.CssClasses_.POSITION_PREFIX +
+      this.position_);
+};
+
+/**
+ * Initialize element.
+ */
+DemoAnimation.prototype.init = function() {
+  'use strict';
+
+  if (this.element_) {
+    if (!this.movable_) {
+      console.error('Was expecting to find an element with class name ' +
+          this.CssClasses_.MOVABLE + ' inside of: ', this.element_);
+      return;
+    }
+
+    this.element_.addEventListener('click', this.handleClick_.bind(this));
+  }
+};
+
+// The component registers itself. It can assume componentHandler is available
+// in the global scope.
+componentHandler.register({
+  constructor: DemoAnimation,
+  classAsString: 'DemoAnimation',
+  cssClass: 'demo-js-animation'
+});