[website] updates for bootstrap3
diff --git a/website/templates/pages/blog.html b/website/templates/pages/blog.html
index ba98f36..fcb542b 100644
--- a/website/templates/pages/blog.html
+++ b/website/templates/pages/blog.html
@@ -25,7 +25,7 @@
 		<!-- blog list will be generated dynamically -->
 	</div>
 	<div style="text-align: center;">
-		<button id="next-page" class="btn" 
+		<button id="next-page" class="btn btn-default" 
 			style="display:none;">More...</button>
 	</div>
 </div>