diff --git a/core/modules/datetime/lib/Drupal/datetime/Tests/DateTimeFieldTest.php b/core/modules/datetime/lib/Drupal/datetime/Tests/DateTimeFieldTest.php
index fd1b7f7..9ec079e 100644
--- a/core/modules/datetime/lib/Drupal/datetime/Tests/DateTimeFieldTest.php
+++ b/core/modules/datetime/lib/Drupal/datetime/Tests/DateTimeFieldTest.php
@@ -98,7 +98,7 @@ function testDateField() {
     // Display creation form.
     $this->drupalGet('entity_test/add');
     $this->assertFieldByName("{$field_name}[0][value][date]", '', 'Date element found.');
-    $this->assertFieldByXPath('//*[@id="edit-' . $field_name . '-wrapper"]/h4/span', '*', 'Required markup found');
+    $this->assertFieldByXPath('//*[@id="edit-' . $field_name . '-wrapper"]/h4[contains(@class, "form-required")]', TRUE, 'Required markup found');
     $this->assertNoFieldByName("{$field_name}[0][value][time]", '', 'Time element not found.');
 
     // Submit a valid date and ensure it is accepted.
diff --git a/core/modules/system/css/system.theme.css b/core/modules/system/css/system.theme.css
index 0f500de..c809135 100644
--- a/core/modules/system/css/system.theme.css
+++ b/core/modules/system/css/system.theme.css
@@ -85,10 +85,8 @@ h4.label {
 
 .form-required:after {
   color: #e00;
-  content: "*";
+  content: " * ";
   speak: none;
-  margin-left: 0.25em;
-  margin-right: 0.25em; /* RTL */
 }
 
 abbr.tabledrag-changed,