diff --git a/static/css/playground.css b/static/css/playground.css
index 434d2e5..8bbbfcb 100644
--- a/static/css/playground.css
+++ b/static/css/playground.css
@@ -74,8 +74,12 @@ body{
     height: 70%;
 }
 
-#output {
+.bottom-window-group {
     height: 30%;
+}
+
+#output {
+    height: 100%;
     width: 100%;
     border-width: 0;
     margin: 0;
@@ -114,6 +118,10 @@ body{
     border-left: 1px solid #919191;
 }
 
+#goNews::-webkit-scrollbar {
+    display: none;
+}
+
 #goNews li a {
     display: block;
     padding: 8px 10px;
diff --git a/static/js/playground.js b/static/js/playground.js
index cd00e3a..32411e8 100644
--- a/static/js/playground.js
+++ b/static/js/playground.js
@@ -295,8 +295,6 @@ var playground = {
         };
 
         playgroundWS.onmessage = function (e) {
-            console.log('[playground onmessage]' + e.data);
-
             var data = JSON.parse(e.data);
 
             if ("init-playground" === data.cmd) {