Issue #3514853 by catch, sandip, smustgrave: Remove position-container.module.css from system/base

core/modules/system/css/components/position-container.module.css

-/*
- * @file
- * Contain positioned elements.
- */
-
-.position-container {
-  position: relative;
-}

core/modules/system/system.libraries.yml

@@ -9,7 +9,6 @@ base:
       css/components/hidden.module.css: { weight: -10 }
       css/components/item-list.module.css: { weight: -10 }
       css/components/js.module.css: { weight: -10 }
-      css/components/position-container.module.css: { weight: -10 }
       css/components/reset-appearance.module.css: { weight: -10 }
 
 admin:

core/profiles/demo_umami/tests/src/FunctionalJavascript/AssetAggregationAcrossPagesTest.php

@@ -30,7 +30,7 @@ public function testFrontAndRecipesPages(): void {
       'ScriptCount' => 1,
       'ScriptBytes' => 11700,
       'StylesheetCount' => 6,
-      'StylesheetBytes' => 119600,
+      'StylesheetBytes' => 119250,
     ];
     $this->assertMetrics($expected, $performance_data);
   }

core/profiles/standard/tests/src/FunctionalJavascript/StandardPerformanceTest.php

@@ -285,7 +285,7 @@ protected function testAnonymous(): void {
         ['config:user.role.anonymous'],
       ],
       'StylesheetCount' => 1,
-      'StylesheetBytes' => 1750,
+      'StylesheetBytes' => 1550,
     ];
     $this->assertMetrics($expected, $performance_data);
 

core/themes/claro/css/components/tabs.css

@@ -172,6 +172,10 @@
   box-shadow: none;
 }
 
+.position-container {
+  position: relative;
+}
+
 @media screen and (min-width: 48em) {
   .tabs-wrapper {
     display: flex;

core/themes/claro/css/components/tabs.pcss.css

@@ -152,6 +152,10 @@
   }
 }
 
+.position-container {
+  position: relative;
+}
+
 @media screen and (min-width: 48em) {
   .tabs-wrapper {
     display: flex;

core/themes/stable9/stable9.info.yml

@@ -240,7 +240,6 @@ libraries-override:
         css/components/hidden.module.css: css/system/components/hidden.module.css
         css/components/item-list.module.css: css/system/components/item-list.module.css
         css/components/js.module.css: css/system/components/js.module.css
-        css/components/position-container.module.css: css/system/components/position-container.module.css
         css/components/reset-appearance.module.css: css/system/components/reset-appearance.module.css
   system/admin:
     css: