diff --git a/core/modules/field/field.form.inc b/core/modules/field/field.form.inc
index 5830725..483c213 100644
--- a/core/modules/field/field.form.inc
+++ b/core/modules/field/field.form.inc
@@ -29,7 +29,7 @@ function theme_field_multiple_value_form($variables) {
 
     $header = array(
       array(
-        'data' => '<label>' . t('!title !required', array('!title' => $element['#title'], '!required' => $required)) . "</label>",
+        'data' => '<h4 class="label">' . t('!title !required', array('!title' => $element['#title'], '!required' => $required)) . "</h4>",
         'colspan' => 2,
         'class' => array('field-label'),
       ),
diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index 2af53f8..1fd9c6a 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -1284,7 +1284,7 @@ function theme_filter_guidelines($variables) {
   $attributes['class'][] = 'filter-guidelines-item';
   $attributes['class'][] = 'filter-guidelines-' . $format->format;
   $output = '<div' . new Attribute($attributes) . '>';
-  $output .= '<h3>' . check_plain($format->name) . '</h3>';
+  $output .= '<h4 class="label">' . check_plain($format->name) . '</h4>';
   $output .= theme('filter_tips', array('tips' => _filter_tips($format->format, FALSE)));
   $output .= '</div>';
   return $output;
diff --git a/core/modules/language/language.admin.inc b/core/modules/language/language.admin.inc
index a92793d..a205d3f 100644
--- a/core/modules/language/language.admin.inc
+++ b/core/modules/language/language.admin.inc
@@ -548,7 +548,7 @@ function theme_language_negotiation_configure_form($variables) {
 
   foreach ($form['#language_types'] as $type) {
     $rows = array();
-    $title = '<label>' . $form[$type]['#title'] . '</label>';
+    $title = '<h4 class="label">' . $form[$type]['#title'] . '</h4>';
     $description = '<div class="description">' . $form[$type]['#description'] . '</div>';
 
     foreach ($form[$type]['title'] as $id => $element) {
diff --git a/core/modules/system/system.theme.css b/core/modules/system/system.theme.css
index 6a4a64d..d0ee00d 100644
--- a/core/modules/system/system.theme.css
+++ b/core/modules/system/system.theme.css
@@ -101,6 +101,12 @@ label.option {
   display: inline;
   font-weight: normal;
 }
+h4.label {
+  font-size: inherit;
+  font-weight: bold;
+  margin: 0;
+  padding: 0;
+}
 .form-checkboxes .form-item,
 .form-radios .form-item {
   margin-top: 0.4em;