diff --git a/less/mobile.less b/less/mobile.less
index 27330a8..9b569ce 100644
--- a/less/mobile.less
+++ b/less/mobile.less
@@ -25,7 +25,16 @@
     width: 90%;
   }
 }
-
+/*
+	CENTER
+*/
+#centerpanel {
+	#buttonGroupVerticalShapes {
+		#btnConv, #btnDiv, #btnSine, #btnStraight {
+			display: none;
+		}
+	}
+}
 /*
   RIGHT
 */