Introduced buttongroup to tutorial view

Change-Id: Icde1dda8626211267fc8367c94ee633e5dc0b653
diff --git a/dev/scss/main/tutorial.scss b/dev/scss/main/tutorial.scss
index 8f8d0f4..2a0318b 100644
--- a/dev/scss/main/tutorial.scss
+++ b/dev/scss/main/tutorial.scss
@@ -16,9 +16,11 @@
   margin: 0;
 */
   background-color: $nearly-white;
-  ul.action {
+
+  .button-group.button-view {
     background-color: $middle-grey;
     display: block;
+    height: 100%;
   }
   border: {
     width: 2 * $border-size;