Index: lams_central/web/css/_authoring_base.scss
===================================================================
diff -u -r184d3b8b5d3dcb11d73a1a59574fe6f776a7812b -rb1d19f0ff47bce56bb97242bb98e92c115a68d1a
--- lams_central/web/css/_authoring_base.scss	(.../_authoring_base.scss)	(revision 184d3b8b5d3dcb11d73a1a59574fe6f776a7812b)
+++ lams_central/web/css/_authoring_base.scss	(.../_authoring_base.scss)	(revision b1d19f0ff47bce56bb97242bb98e92c115a68d1a)
@@ -435,11 +435,9 @@
 
 /**** Main authoring styles ****/
 div#toolbar {
-  display: flex;
-  justify-content: center;
+  text-align: center;
   padding-top: 15px;
-  padding-bottom: 15px;
-}
+  padding-bottom: 15px; }
 
 div#toolbar button {
   box-shadow: 0px 8px 15px rgba(0, 0, 0, 0.1);