diff --git a/validata_ui/templates/base_template.html b/validata_ui/templates/base_template.html
index c041fa506deef18fdd07589f65cecb3b0e49d937..3a3f2460361ee166175c174e0e4ba126f633bebb 100644
--- a/validata_ui/templates/base_template.html
+++ b/validata_ui/templates/base_template.html
@@ -55,11 +55,8 @@
     {% with messages = get_flashed_messages(with_categories=true) %}
     {% if messages %}
     {% for category, message in messages %}
-    <div class="alert alert-{{ category }} alert-dismissible fade show">
+    <div class="alert alert-{{ category }} w-75 mx-auto">
         {{ message }}
-        <button type="button" class="close" data-dismiss="alert" aria-label="Close">
-            <span aria-hidden="true">&times;</span>
-        </button>
     </div>
     {% endfor %}
     {% endif %}
diff --git a/validata_ui/templates/home.html b/validata_ui/templates/home.html
index 490e488521a9f8ab939d08d28ca2ce03e41ebc8b..7b29926a82279d11112bf40b906dba8692636a50 100644
--- a/validata_ui/templates/home.html
+++ b/validata_ui/templates/home.html
@@ -4,19 +4,19 @@
 {{ super() }}
 {% endblock %}
 {% block content %}
-<h1>Validez vos jeux de données</h1>
+<h1 class="my-4">Validez vos jeux de données</h1>
 
-<div class="card-deck-wrapper">
-    <div class="card-deck">
-        {% for val in validators %}
-        <div class="card text-center" style="width: 18em;">
+<div class="row my-5">
+    {% for val in validators %}
+    <div class="col-sm-4 col-md-3 mb-4">
+        <div class="card text-center h-100">
             <div class="card-body d-flex flex-column">
                 <h4 class="card-title">{{ val.title }}</h4>
                 <p class="card-text">{{ val.description }}</p>
                 <a href="{{ url_for('scdl_validator', val_code=val.code) }}" class="btn btn-primary mt-auto">Choisir</a>
             </div>
         </div>
-        {% endfor %}
     </div>
+    {% endfor %}
 </div>
 {% endblock %}
\ No newline at end of file
diff --git a/validata_ui/templates/validation_form.html b/validata_ui/templates/validation_form.html
index 5fce3925b8cf20dd20a42f43d7760a839e16518f..f23fa90f451eafa9c0bf41622f3d6434df0c00b9 100644
--- a/validata_ui/templates/validation_form.html
+++ b/validata_ui/templates/validation_form.html
@@ -4,7 +4,7 @@
 {{ super() }}
 {% endblock %}
 {% block content %}
-<h1>Schéma « {{ title }} »</h1>
+<h1 class="my-4">Schéma « {{ title }} »</h1>
 
 {% set cols_my_classes = 'my-md-0 my-4' %}
 <div class="row">
diff --git a/validata_ui/templates/validation_report.html b/validata_ui/templates/validation_report.html
index c1fc3db219bbfe51e639743911a5dfc33c05cab0..d48f1f0500de244d39f5d05e2a04d49726d8f4cd 100644
--- a/validata_ui/templates/validation_report.html
+++ b/validata_ui/templates/validation_report.html
@@ -24,7 +24,7 @@
 <div class="row">
     <div class="col-md-5">
 {% endif %}
-        <h1>{{ title }}</h1>
+        <h1 class="my-4">{{ title }}</h1>
         <p>Validation effectuée {{ validation_date }}</p>
 {% if print_mode %}
     </div>
diff --git a/validata_ui/views.py b/validata_ui/views.py
index 32f45768ae347d615ba0cf6df7e118c364cf2ebf..8ee9eff6de6329e3aa0d8e4caf2e5f878339b97e 100644
--- a/validata_ui/views.py
+++ b/validata_ui/views.py
@@ -263,7 +263,7 @@ def bytes_data(f):
 def home():
     """ Home page """
     validators = ValidatorHelper.schema_info_list()
-    flash_warning('Ce service est fourni en mode beta - certains problèmes peuvent subsister - nous mettons tout en œuvre pour améliorer son fonctionnement en continu')
+    flash_warning('Ce service est fourni en mode beta - certains problèmes peuvent subsister - nous mettons tout en œuvre pour améliorer son fonctionnement en continu.')
     return render_template('home.html', title='Accueil', validators=validators)