diff --git a/static/css/app.css b/static/css/app.css
index 1e0f1d8..e2f2ffd 100755
--- a/static/css/app.css
+++ b/static/css/app.css
@@ -267,7 +267,8 @@
     display: none;
 }
 #file-editor .CodeMirror {
-    height: auto;
+    height: 100%;
+    background: #FFFFD8;
 }
 #file-editor .CodeMirror-lines, #file-editor .CodeMirror-gutters {
     background: #FFFFD8;