diff --git a/core-header-panel.html b/core-header-panel.html
index 782f426..d6e6443 100644
--- a/core-header-panel.html
+++ b/core-header-panel.html
@@ -42,7 +42,7 @@
       <div>Content goes here...</div>
     </core-header-panel>
 
-If you want to use other than `core-toolbar` for the header, add 
+If you want to use other than `core-toolbar` for the header, add
 `core-header` class to that element.
 
 Example:
@@ -51,7 +51,7 @@
       <div class="core-header">Header</div>
       <div>Content goes here...</div>
     </core-header-panel>
-    
+
 To have the content fits to the main area, use `fit` attribute.
 
     <core-header-panel>
@@ -72,19 +72,19 @@
 <template>
 
   <link rel="stylesheet" href="core-header-panel.css">
-  
+
   <div id="outerContainer" on-scroll="{{scroll}}" vertical layout>
 
     <content id="headerContent" select="core-toolbar, .core-header"></content>
 
     <div id="mainPanel" flex vertical layout>
-    
+
       <div id="mainContainer" flex?="{{mode !== 'cover'}}" on-scroll="{{scroll}}">
         <content id="mainContent" select="*"></content>
       </div>
-      
+
       <div id="dropShadow"></div>
-      
+
     </div>
 
   </div>
@@ -93,7 +93,7 @@
 <script>
 
   Polymer('core-header-panel', {
-    
+
     /**
      * Fired when the content has been scrolled.  `details.target` returns
      * the scrollable element which you can use to access scroll info such as
@@ -105,20 +105,20 @@
     publish: {
       /**
        * Controls header and scrolling behavior. Options are
-       * `standard`, `seamed`, `waterfall`, `waterfall-tall`, 
+       * `standard`, `seamed`, `waterfall`, `waterfall-tall`,
        * `waterfall-medium-tall`, `scroll` and `cover`.
        * Default is `standard`.
        *
-       * `standard`: The header is a step above the panel. The header will consume the 
-       * panel at the point of entry, preventing it from passing through to the 
+       * `standard`: The header is a step above the panel. The header will consume the
+       * panel at the point of entry, preventing it from passing through to the
        * opposite side.
        *
        * `seamed`: The header is presented as seamed with the panel.
        *
-       * `waterfall`: Similar to standard mode, but header is initially presented as 
+       * `waterfall`: Similar to standard mode, but header is initially presented as
        * seamed with panel, but then separates to form the step.
        *
-       * `waterfall-tall`: The header is initially taller (`tall` class is added to 
+       * `waterfall-tall`: The header is initially taller (`tall` class is added to
        * the header).  As the user scrolls, the header separates (forming an edge)
        * while condensing (`tall` class is removed from the header).
        *
@@ -136,7 +136,7 @@
        *         margin: 60px 60px 60px 0;
        *       }
        *     </style>
-       * 
+       *
        *     <core-header-panel mode="cover">
        *       <core-appbar class="tall">
        *         <core-icon-button icon="menu"></core-icon-button>
@@ -149,7 +149,7 @@
        * @default ''
        */
       mode: {value: '', reflect: true},
-      
+
       /**
        * The class used in waterfall-tall mode.  Change this if the header
        * accepts a different class for toggling height, e.g. "medium-tall"
@@ -159,7 +159,7 @@
        * @default 'tall'
        */
       tallClass: 'tall',
-      
+
       /**
        * If true, the drop-shadow is always shown no matter what mode is set to.
        *
@@ -169,15 +169,15 @@
        */
       shadow: false
     },
-    
+
     animateDuration: 180,
-    
+
     modeConfigs: {
       shadowMode: {'waterfall': 1, 'waterfall-tall': 1},
       noShadow: {'seamed': 1, 'cover': 1, 'scroll': 1},
       tallMode: {'waterfall-tall': 1}
     },
-    
+
     domReady: function() {
       this.async('scroll');
     },
@@ -203,7 +203,7 @@
     get header() {
       return this.$.headerContent.getDistributedNodes()[0];
     },
-    
+
     /**
      * Returns the scrollable element.
      *
@@ -211,30 +211,30 @@
      * @type Object
      */
     get scroller() {
-      return this.mode === 'scroll' ? 
+      return this.mode === 'scroll' ?
           this.$.outerContainer : this.$.mainContainer;
     },
-    
+
     scroll: function() {
       var configs = this.modeConfigs;
       var main = this.$.mainContainer;
       var header = this.header;
-      
+
       var sTop = main.scrollTop;
       var atTop = sTop === 0;
-      
+
       this.$.dropShadow.classList.toggle('hidden', !this.shadow &&
           (atTop && configs.shadowMode[this.mode] || configs.noShadow[this.mode]));
-      
+
       if (header && configs.tallMode[this.mode]) {
         header.classList.toggle(this.tallClass, atTop ||
-            header.classList.contains(this.tallClass) && 
+            header.classList.contains(this.tallClass) &&
             main.scrollHeight < this.$.outerContainer.offsetHeight);
       }
-      
+
       this.fire('scroll', {target: this.scroller}, this, false);
     }
-    
+
   });
 
 </script>