diff --git a/src/grids/css/grids-core.css b/src/grids/css/grids-core.css
index 10294237e..106bd4dfc 100644
--- a/src/grids/css/grids-core.css
+++ b/src/grids/css/grids-core.css
@@ -26,22 +26,21 @@
 
     /*
     Use flexbox when possible to avoid `letter-spacing` side-effects.
-
-    NOTE: Firefox (as of 25) does not currently support flex-wrap, so the
-    `-moz-` prefix version is omitted.
     */
-
-    display: -webkit-flex;
     -webkit-flex-flow: row wrap;
+    display: -webkit-flex;
 
     /* IE10 uses display: flexbox */
-    display: -ms-flexbox;
     -ms-flex-flow: row wrap;
+    display: -ms-flexbox;
     
     /* Prevents distributing space between rows */
     -ms-align-content: flex-start;
-	-webkit-align-content: flex-start;
-	align-content: flex-start;
+    -webkit-align-content: flex-start;
+    align-content: flex-start;
+
+    flex-flow: row wrap;    
+    display: flex;
 }
 
 /* Opera as of 12 on Windows needs word-spacing.