diff --git a/core/misc/dialog/off-canvas/css/form.css b/core/misc/dialog/off-canvas/css/form.css
index 2d4897bd459..c5436a42042 100644
--- a/core/misc/dialog/off-canvas/css/form.css
+++ b/core/misc/dialog/off-canvas/css/form.css
@@ -77,9 +77,7 @@
   font-weight: bold;
 }
 
-/* Bartik uses the .field-multiple-table CSS class on its tabledrag tables. */
-
-#drupal-off-canvas-wrapper :is(.fieldset, fieldset, .draggable-table, .field-multiple-table) input:where(:not([type="submit"], [type="checkbox"], [type="radio"])) {
+#drupal-off-canvas-wrapper :is(.fieldset, fieldset, .draggable-table) input:where(:not([type="submit"], [type="checkbox"], [type="radio"])) {
   width: 100%; /* Prevent text fields from breaking out of tables and fieldsets at narrow widths. */
 }
 
diff --git a/core/misc/dialog/off-canvas/css/form.pcss.css b/core/misc/dialog/off-canvas/css/form.pcss.css
index e159fb474aa..d8bf8492331 100644
--- a/core/misc/dialog/off-canvas/css/form.pcss.css
+++ b/core/misc/dialog/off-canvas/css/form.pcss.css
@@ -69,8 +69,7 @@
     font-weight: bold;
   }
 
-  /* Bartik uses the .field-multiple-table CSS class on its tabledrag tables. */
-  & :is(.fieldset, fieldset, .draggable-table, .field-multiple-table) input:where(:not([type="submit"], [type="checkbox"], [type="radio"])) {
+  & :is(.fieldset, fieldset, .draggable-table) input:where(:not([type="submit"], [type="checkbox"], [type="radio"])) {
     width: 100%; /* Prevent text fields from breaking out of tables and fieldsets at narrow widths. */
   }
 
diff --git a/core/tests/README.md b/core/tests/README.md
index 9db11a98547..da223686962 100644
--- a/core/tests/README.md
+++ b/core/tests/README.md
@@ -121,9 +121,9 @@ chromedriver using port 4444, and keep it running:
 * To run a11y tests for the default theme only.
   `yarn test:nightwatch --tag a11y:default`
 * To run an a11y test for a custom theme used as the default theme.
-  `yarn test:nightwatch --tag a11y:default --defaultTheme bartik`
+  `yarn test:nightwatch --tag a11y:default --defaultTheme olivero`
 * To run an a11y test for a custom admin theme.
-  `yarn test:nightwatch --tag a11y:admin --adminTheme seven`
+  `yarn test:nightwatch --tag a11y:admin --adminTheme claro`
 
 Nightwatch tests, as well as custom commands, assertions and pages, can be
 placed in any folder with the pattern