Demos: Typo fix.

Author: jaspermdegroot

demos/panel-external-internal/index.html

@@ -44,7 +44,7 @@ <h2>Page A</h2>
 
 			<p>The left panel and fixed header are outside the page. The right panel and fixed footer are inside the pages.</p>
 
-			<a href="#inside-a" clalss="ui-btn ui-shadow ui-corner-all ui-btn-inline">Open right panel</a>
+			<a href="#inside-a" class="ui-btn ui-shadow ui-corner-all ui-btn-inline">Open right panel</a>
 
 		</div><!-- /content -->