diff --git a/src/Form/Type/DataSourceSynonymRowType.php b/src/Form/Type/DataSourceSynonymRowType.php
index 445d5c4e..abef12de 100644
--- a/src/Form/Type/DataSourceSynonymRowType.php
+++ b/src/Form/Type/DataSourceSynonymRowType.php
@@ -52,20 +52,16 @@ class DataSourceSynonymRowType extends AbstractType
                 'label' => false,
                 'choices' => $this->buildDataSourceChoices($options['data_sources']),
                 'required' => true,
-                'row_attr' => [
-                    'class' => 'form-floating',
-                ],
                 'constraints' => [
                     new Assert\NotBlank(),
                 ],
+                'row_attr' => ['class' => 'mb-0'],
+                'attr' => ['class' => 'form-select-sm']
             ])
             ->add('locale', LocaleType::class, [
                 //'label' => 'settings.behavior.data_source_synonyms.row_type.form.locale',
                 'label' => false,
                 'required' => true,
-                'row_attr' => [
-                    'class' => 'form-floating',
-                ],
                 // Restrict to languages configured in the language menu: disable ChoiceLoader and provide explicit choices
                 'choice_loader' => null,
                 'choices' => $this->buildLocaleChoices(true),
@@ -73,34 +69,30 @@ class DataSourceSynonymRowType extends AbstractType
                 'constraints' => [
                     new Assert\NotBlank(),
                 ],
+                'row_attr' => ['class' => 'mb-0'],
+                'attr' => ['class' => 'form-select-sm']
             ])
             ->add('translation_singular', TextType::class, [
-                'label' => 'settings.behavior.data_source_synonyms.row_type.form.translation_singular',
+                //'label' => 'settings.behavior.data_source_synonyms.row_type.form.translation_singular',
+                'label' => false,
                 'required' => true,
                 'empty_data' => '',
                 'constraints' => [
                     new Assert\NotBlank(),
                 ],
-                'row_attr' => [
-                    'class' => 'form-floating',
-                ],
-                'attr' => [
-                    'placeholder' => '' // to show floating label even when empty
-                ]
+                'row_attr' => ['class' => 'mb-0'],
+                'attr' => ['class' => 'form-select-sm']
             ])
             ->add('translation_plural', TextType::class, [
-                'label' => 'settings.behavior.data_source_synonyms.row_type.form.translation_plural',
-                'row_attr' => [
-                    'class' => 'form-floating',
-                ],
+                //'label' => 'settings.behavior.data_source_synonyms.row_type.form.translation_plural',
+                'label' => false,
                 'required' => true,
                 'empty_data' => '',
                 'constraints' => [
                     new Assert\NotBlank(),
                 ],
-                'attr' => [
-                    'placeholder' => '' // to show floating label even when empty
-                ]
+                'row_attr' => ['class' => 'mb-0'],
+                'attr' => ['class' => 'form-select-sm']
             ]);
     }
 
diff --git a/templates/form/datasource_synonyms_collection.html.twig b/templates/form/datasource_synonyms_collection.html.twig
index 0c81a54e..27c4a051 100644
--- a/templates/form/datasource_synonyms_collection.html.twig
+++ b/templates/form/datasource_synonyms_collection.html.twig
@@ -7,7 +7,7 @@
             <div class="col">{{ form_row(child.translation_singular) }}</div>
             <div class="col">{{ form_row(child.translation_plural) }}</div>
             <div class="col">
-                <button type="button" class="btn btn-outline-danger tc-remove" data-action="elements--datasource-synonyms-collection#remove">
+                <button type="button" class="btn btn-outline-danger btn-sm tc-remove" data-action="elements--datasource-synonyms-collection#remove">
                     <i class="fa fa-trash"></i> {{ 'settings.behavior.data_source_synonyms.collection.remove_entry'|trans }}
                 </button>
             </div>
@@ -39,6 +39,14 @@
     }) }}
     {{ block('widget_container_attributes')|raw }}{% for k,v in _attrs %} {{ k }}="{{ v }}"{% endfor %}
     >
+    <div class="row">
+        <div class="col text-center"><strong>{% trans %}settings.behavior.data_source_synonyms.row_type.form.datasource{% endtrans %}</strong></div>
+        <div class="col text-center"><strong>{% trans %}settings.behavior.data_source_synonyms.row_type.form.locale{% endtrans %}</strong></div>
+        <div class="col text-center"><strong>{% trans %}settings.behavior.data_source_synonyms.row_type.form.translation_singular{% endtrans %}</strong></div>
+        <div class="col text-center"><strong>{% trans %}settings.behavior.data_source_synonyms.row_type.form.translation_plural{% endtrans %}</strong></div>
+        <div class="col text-center"></div>
+    </div>
+
     <div class="tc-items" data-elements--datasource-synonyms-collection-target="items">
         {% for child in form %}
             {{ _self.renderForm(child) }}