diff --git a/ETS-WS/ETS-WS/css/BuildBlocks.css b/ETS-WS/ETS-WS/css/BuildBlocks.css
index ff60f61..b6f4fa0 100644
--- a/ETS-WS/ETS-WS/css/BuildBlocks.css
+++ b/ETS-WS/ETS-WS/css/BuildBlocks.css
@@ -206,7 +206,7 @@
 {
     width: 400px;
     color: Black;
-    background-color: White;
+    background-color: Yellow;
     font-size: 8pt;
     padding: 4px 1px 4px 1px;
     border-bottom: 1px solid #888;