diff --git a/core/themes/bartik/config/bartik.breakpoints.yml b/core/themes/bartik/config/bartik.breakpoints.yml
index 9eb9cb2dad8f..501f417e18fc 100644
--- a/core/themes/bartik/config/bartik.breakpoints.yml
+++ b/core/themes/bartik/config/bartik.breakpoints.yml
@@ -1,3 +1,3 @@
 mobile: '(min-width: 0px)'
-narrow: 'all and (min-width: 560px) and (max-width:850px)'
+narrow: 'all and (min-width: 560px) and (max-width: 850px)'
 wide: 'all and (min-width: 851px)'
diff --git a/core/themes/bartik/css/layout.css b/core/themes/bartik/css/layout.css
index fd69c49f68f6..4817eef2c6fc 100644
--- a/core/themes/bartik/css/layout.css
+++ b/core/themes/bartik/css/layout.css
@@ -71,7 +71,7 @@ body,
   padding: 0 10px;
 }
 
-@media all and (min-width: 560px) and (max-width:850px) {
+@media all and (min-width: 560px) and (max-width: 850px) {
 
   #sidebar-first,
   .region-triptych-first,