diff --git a/emscripten/webplayer.html b/emscripten/webplayer.html
index eb7dbc1a16..548c186611 100644
--- a/emscripten/webplayer.html
+++ b/emscripten/webplayer.html
@@ -72,7 +72,9 @@
       </div>
       <div class="row">
          <div class="col-sm-12">
-            <textarea class="webplayer" id="output" rows="15"></textarea>
+            <div class="form-group">
+               <textarea class="webplayer form-control" id="output" rows="15"></textarea>
+            </div>
          </div>
       </div>
    </div>