remove trailing whitespace

demo/card/x-cards-list.html

@@ -26,7 +26,7 @@
         @apply(--layout-fit);
       }
     </style>
-    
+
     <div id="placeholder"></div>
     <div id="container">
       <content select="div"></content>

demo/list/full-view.html

@@ -55,7 +55,7 @@
         </div>
       </div>
     </div>
-    
+
   </template>
 </dom-module>
 

demo/tiles/squares-page.html

@@ -31,7 +31,7 @@
         background: var(--color-two);
       }
     </style>
-    
+
     <div id="header" class="header"></div>
 
     <div class="body">

neon-animatable.html

@@ -32,7 +32,7 @@
         display: block;
       }
     </style>
-    
+
     <content></content>
   </template>
 

neon-animated-pages.html

@@ -48,7 +48,7 @@
         pointer-events: none;
       }
     </style>
-    
+
     <content id="content"></content>
   </template>
 

neon-animation-runner-behavior.html

@@ -32,7 +32,7 @@
             try {
               result = neonAnimation.configure(config);
               // Check if we have an Effect rather than an Animation
-              if (typeof result.cancel != 'function') { 
+              if (typeof result.cancel != 'function') {
                 result = document.timeline.play(result);
               }
             } catch (e) {