diff --git a/node_modules/material-design-lite/src/button/button.js b/node_modules/material-design-lite/src/button/button.js
new file mode 100644
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+++ b/node_modules/material-design-lite/src/button/button.js
@@ -0,0 +1,123 @@
+/**
+ * @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.
+ */
+
+(function() {
+  'use strict';
+
+  /**
+   * Class constructor for Button 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.
+   */
+  var MaterialButton = function MaterialButton(element) {
+    this.element_ = element;
+
+    // Initialize instance.
+    this.init();
+  };
+  window['MaterialButton'] = MaterialButton;
+
+  /**
+   * Store constants in one place so they can be updated easily.
+   *
+   * @enum {string | number}
+   * @private
+   */
+  MaterialButton.prototype.Constant_ = {
+    // None for now.
+  };
+
+  /**
+   * 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
+   */
+  MaterialButton.prototype.CssClasses_ = {
+    RIPPLE_EFFECT: 'mdl-js-ripple-effect',
+    RIPPLE_CONTAINER: 'mdl-button__ripple-container',
+    RIPPLE: 'mdl-ripple'
+  };
+
+  /**
+   * Handle blur of element.
+   *
+   * @param {Event} event The event that fired.
+   * @private
+   */
+  MaterialButton.prototype.blurHandler_ = function(event) {
+    if (event) {
+      this.element_.blur();
+    }
+  };
+
+  // Public methods.
+
+  /**
+   * Disable button.
+   *
+   * @public
+   */
+  MaterialButton.prototype.disable = function() {
+    this.element_.disabled = true;
+  };
+  MaterialButton.prototype['disable'] = MaterialButton.prototype.disable;
+
+  /**
+   * Enable button.
+   *
+   * @public
+   */
+  MaterialButton.prototype.enable = function() {
+    this.element_.disabled = false;
+  };
+  MaterialButton.prototype['enable'] = MaterialButton.prototype.enable;
+
+  /**
+   * Initialize element.
+   */
+  MaterialButton.prototype.init = function() {
+    if (this.element_) {
+      if (this.element_.classList.contains(this.CssClasses_.RIPPLE_EFFECT)) {
+        var rippleContainer = document.createElement('span');
+        rippleContainer.classList.add(this.CssClasses_.RIPPLE_CONTAINER);
+        this.rippleElement_ = document.createElement('span');
+        this.rippleElement_.classList.add(this.CssClasses_.RIPPLE);
+        rippleContainer.appendChild(this.rippleElement_);
+        this.boundRippleBlurHandler = this.blurHandler_.bind(this);
+        this.rippleElement_.addEventListener('mouseup', this.boundRippleBlurHandler);
+        this.element_.appendChild(rippleContainer);
+      }
+      this.boundButtonBlurHandler = this.blurHandler_.bind(this);
+      this.element_.addEventListener('mouseup', this.boundButtonBlurHandler);
+      this.element_.addEventListener('mouseleave', this.boundButtonBlurHandler);
+    }
+  };
+
+  // The component registers itself. It can assume componentHandler is available
+  // in the global scope.
+  componentHandler.register({
+    constructor: MaterialButton,
+    classAsString: 'MaterialButton',
+    cssClass: 'mdl-js-button',
+    widget: true
+  });
+})();