diff --git a/core/modules/node/css/node.admin.theme.css b/core/modules/node/css/node.admin.theme.css
index e88164c..3c683ba 100644
--- a/core/modules/node/css/node.admin.theme.css
+++ b/core/modules/node/css/node.admin.theme.css
@@ -4,7 +4,7 @@
  */
 
 /**
- * Node add/edit form layout
+ * Node add/edit form layout.
  */
 
 /* Narrow screens */
@@ -69,7 +69,7 @@
   }
 }
 
-/* Node preview container. */
+/* Node preview container */
 .node-preview-container {
   position: fixed;
   z-index: 499;
@@ -87,7 +87,7 @@
   }
 }
 
-/* Revision color. */
+/* Revision color */
 .revision-current {
   background: #ffc;
 }