Issue

core/modules/system/src/Tests/Installer/InstallerTranslationTest.php

@@ -96,7 +96,7 @@ public function testInstaller() {
     $edit = array('preprocess_css' => FALSE);
     $this->drupalPostForm('admin/config/development/performance', $edit, t('Save configuration'));
     $this->drupalGet('<front>');
-    $this->assertRaw('classy/css/layout.css');
+    $this->assertRaw('classy/css/components/action-links.css');
 
     // Verify the strings from the translation files were imported.
     $test_samples = ['Save and continue', 'Anonymous'];

core/modules/system/src/Tests/Theme/ThemeEarlyInitializationTest.php

@@ -33,6 +33,6 @@ function testRequestListener() {
     $this->assertRaw('Themed output generated in a KernelEvents::REQUEST listener');
     // Verify that the default theme's CSS still appears even though the theme
     // system was initialized early.
-    $this->assertRaw('classy/css/layout.css');
+    $this->assertRaw('classy/css/components/action-links.css');
   }
 }

core/modules/system/src/Tests/Theme/ThemeInfoTest.php

@@ -71,16 +71,16 @@ function testStylesheets() {
     // should work nevertheless.
     $this->drupalGet('theme-test/info/stylesheets');
 
-    $this->assertIdentical(1, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "$base/base-add.css"))), "$base/base-add.css found");
-    $this->assertIdentical(0, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "base-remove.css"))), "base-remove.css not found");
+    $this->assertIdentical(1, count($this->xpath('//link[contains(@href, :href)]', array(':href'  => "$base/base-add.css"))), "$base/base-add.css found");
+    $this->assertIdentical(0, count($this->xpath('//link[contains(@href, :href)]', array(':href'  => "base-remove.css"))), "base-remove.css not found");
 
-    $this->assertIdentical(1, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "$sub/sub-add.css"))), "$sub/sub-add.css found");
-    $this->assertIdentical(0, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "sub-remove.css"))), "sub-remove.css not found");
-    $this->assertIdentical(0, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "base-add.sub-remove.css"))), "base-add.sub-remove.css not found");
+    $this->assertIdentical(1, count($this->xpath('//link[contains(@href, :href)]', array(':href'  => "$sub/sub-add.css"))), "$sub/sub-add.css found");
+    $this->assertIdentical(0, count($this->xpath('//link[contains(@href, :href)]', array(':href'  => "sub-remove.css"))), "sub-remove.css not found");
+    $this->assertIdentical(0, count($this->xpath('//link[contains(@href, :href)]', array(':href' => "base-add.sub-remove.css"))), "base-add.sub-remove.css not found");
 
     // Verify that CSS files with the same name are loaded from both the base theme and subtheme.
-    $this->assertIdentical(1, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "$base/samename.css"))), "$base/samename.css found");
-    $this->assertIdentical(1, count($this->xpath('//style[contains(text(), :text)]', array(':text' => "$sub/samename.css"))), "$sub/samename.css found");
+    $this->assertIdentical(1, count($this->xpath('//link[contains(@href, :href)]', array(':href' => "$base/samename.css"))), "$base/samename.css found");
+    $this->assertIdentical(1, count($this->xpath('//link[contains(@href, :href)]', array(':href' => "$sub/samename.css"))), "$sub/samename.css found");
 
   }
 

core/modules/system/system.libraries.yml

@@ -19,28 +19,6 @@ base:
       css/components/resize.module.css: { weight: -10 }
       css/components/sticky-header.module.css: { weight: -10 }
       css/components/tabledrag.module.css: { weight: -10 }
-    theme:
-      css/components/action-links.theme.css: { weight: -10 }
-      css/components/breadcrumb.theme.css: { weight: -10 }
-      css/components/button.theme.css: { weight: -10 }
-      css/components/collapse-processed.theme.css: { weight: -10 }
-      css/components/container-inline.theme.css: { weight: -10 }
-      css/components/details.theme.css: { weight: -10 }
-      css/components/field.theme.css: { weight: -10 }
-      css/components/form.theme.css: { weight: -10 }
-      css/components/icons.theme.css: { weight: -10 }
-      css/components/inline-form.theme.css: { weight: -10 }
-      css/components/item-list.theme.css: { weight: -10 }
-      css/components/link.theme.css: { weight: -10 }
-      css/components/links.theme.css: { weight: -10 }
-      css/components/menu.theme.css: { weight: -10 }
-      css/components/messages.theme.css: { weight: -10 }
-      css/components/progress.theme.css: { weight: -10 }
-      css/components/tableselect.theme.css: { weight: -10 }
-      css/components/tabledrag.theme.css: { weight: -10 }
-      css/components/tablesort.theme.css: { weight: -10 }
-      css/components/tabs.theme.css: { weight: -10 }
-      css/components/textarea.theme.css: { weight: -10 }
       css/components/tree-child.module.css: { weight: -10 }
 
 admin:

core/modules/system/templates/menu.html.twig

@@ -27,9 +27,9 @@
   {% import _self as menus %}
   {% if items %}
     {% if menu_level == 0 %}
-      <ul{{ attributes.addClass('menu') }}>
+      <ul{{ attributes }}>
     {% else %}
-      <ul class="menu">
+      <ul>
     {% endif %}
       {% for item in items %}
         <li{{ item.attributes }}>

core/themes/bartik/bartik.info.yml

@@ -5,8 +5,6 @@ description: 'A flexible, recolorable theme with many regions and a responsive,
 package: Core
 version: VERSION
 core: 8.x
-stylesheets-remove:
-  - '@classy/css/layout.css'
 libraries:
   - bartik/global-styling
 ckeditor_stylesheets:

core/themes/classy/classy.libraries.yml

@@ -2,23 +2,46 @@ base:
   version: VERSION
   css:
     component:
-      css/components/pager.css: { weight: -10 }
-      css/components/more-link.css: { weight: -10 }
+      css/components/action-links.css: { weight: -10 }
+      css/components/breadcrumb.css: { weight: -10 }
+      css/components/button.css: { weight: -10 }
+      css/components/collapse-processed.css: { weight: -10 }
+      css/components/container-inline.css: { weight: -10 }
+      css/components/details.css: { weight: -10 }
       css/components/exposed-filters.css: { weight: -10 }
-    theme:
-      css/layout.css: {}
+      css/components/field.css: { weight: -10 }
+      css/components/form.css: { weight: -10 }
+      css/components/icons.css:  { weight: -10 }
+      css/components/inline-form.css: { weight: -10 }
+      css/components/item-list.css: { weight: -10 }
+      css/components/link.css: { weight: -10 }
+      css/components/links.css: { weight: -10 }
+      css/components/menu.css: { weight: -10 }
+      css/components/more-link.css: { weight: -10 }
+      css/components/pager.css: { weight: -10 }
+      css/components/tabledrag.css: { weight: -10 }
+      css/components/tableselect.css: { weight: -10 }
+      css/components/tablesort.css: { weight: -10 }
+      css/components/tabs.css: { weight: -10 }
+      css/components/textarea.css: { weight: -10 }
 
 book-navigation:
   version: VERSION
   css:
-    theme:
-      css/navigation/book.theme.css: {}
+    component:
+      css/components/book-navigation.css: {}
 
-drupal.comment.threaded:
+indented:
   version: VERSION
   css:
-    theme:
-      css/comment/comment.theme.css: {}
+    component:
+      css/components/indented.css: {}
+
+messages:
+  version: VERSION
+  css:
+    component:
+      css/components/messages.css:  { weight: -10 }
 
 node:
   version: VERSION
@@ -26,8 +49,14 @@ node:
     component:
       css/components/node.css: { weight: -10 }
 
-search.results:
+progress:
   version: VERSION
   css:
-    theme:
-      css/search/search.theme.css: {}
+    component:
+      css/components/progress.css: { weight: -10 }
+
+search-results:
+  version: VERSION
+  css:
+    component:
+      css/components/search-results.css: {}