diff --git a/core/modules/block/css/block.admin.css b/core/modules/block/css/block.admin.css
index edee308..03a5c6d 100644
--- a/core/modules/block/css/block.admin.css
+++ b/core/modules/block/css/block.admin.css
@@ -46,10 +46,10 @@ a.block-demo-backlink:hover {
 #block-placed {
   background-color: #ffd;
 }
-#edit-settings-admin-label label {
+.block-form .form-item-settings-admin-label label {
   display: inline;
 }
-#edit-settings-admin-label label:after {
+.block-form .form-item-settings-admin-label label:after {
   content: ':';
 }