diff --git a/core/themes/bartik/bartik.libraries.yml b/core/themes/bartik/bartik.libraries.yml
index 30e83fc..be22957 100644
--- a/core/themes/bartik/bartik.libraries.yml
+++ b/core/themes/bartik/bartik.libraries.yml
@@ -21,9 +21,11 @@ global-styling:
       css/components/header.css: {}
       css/components/region-help.css: {}
       css/components/item-list.css: {}
+      css/components/list-group.css: {}
       css/components/messages.css: {}
       css/components/node-preview.css: {}
       css/components/pager.css: {}
+      css/components/panel.css: {}
       css/components/primary-menu.css: {}
       css/components/search.css: {}
       css/components/search-results.css: {}
diff --git a/core/themes/bartik/css/components/admin.css b/core/themes/bartik/css/components/admin.css
index 04c0038..5ff3996 100644
--- a/core/themes/bartik/css/components/admin.css
+++ b/core/themes/bartik/css/components/admin.css
@@ -31,23 +31,4 @@
   width: 500px;
 }
 
-.panel {
-  background: #fbfbfb;
-  border: 1px solid #ccc;
-  margin: 10px 0;
-  padding: 0 5px 5px;
-}
-.panel__title {
-  margin: 16px 7px;
-}
-.list-group__link {
-  border-top: 1px solid #ccc;
-  padding: 7px 0 0;
-}
-.list-group__description {
-  margin: 0 0 10px;
-}
-[dir="rtl"] .admin-panel__description {
-  margin-left: 0;
-  margin-right: 7px;
-}
+
diff --git a/core/themes/bartik/css/components/list-group.css b/core/themes/bartik/css/components/list-group.css
new file mode 100644
index 0000000..61340eb
--- /dev/null
+++ b/core/themes/bartik/css/components/list-group.css
@@ -0,0 +1,13 @@
+/**
+ * @file
+ * List group.
+ * A list of links, grouped together.
+ */
+
+.list-group__link {
+  border-top: 1px solid #ccc;
+  padding: 7px 0 0;
+}
+.list-group__description {
+  margin: 0 0 10px;
+}
\ No newline at end of file
diff --git a/core/themes/bartik/css/components/panel.css b/core/themes/bartik/css/components/panel.css
new file mode 100644
index 0000000..4ea6abd
--- /dev/null
+++ b/core/themes/bartik/css/components/panel.css
@@ -0,0 +1,15 @@
+/**
+ * @file
+ * Panel.
+ * Used to visually group items together.
+ */
+
+.panel {
+  background: #fbfbfb;
+  border: 1px solid #ccc;
+  margin: 10px 0;
+  padding: 0 5px 5px;
+}
+.panel__title {
+  margin: 16px 7px;
+}
diff --git a/core/themes/seven/css/components/panel.css b/core/themes/seven/css/components/panel.css
index badc714..0c5bf2c 100644
--- a/core/themes/seven/css/components/panel.css
+++ b/core/themes/seven/css/components/panel.css
@@ -1,6 +1,7 @@
 /**
  * @file
- * Visual overrides for Seven's panel.
+ * Panel.
+ * Used to visually group items together.
  */
 
 .panel {