diff --git a/src/babillard_page.eml.html b/src/babillard_page.eml.html
index 7d1815d..501c30f 100644
--- a/src/babillard_page.eml.html
+++ b/src/babillard_page.eml.html
@@ -10,14 +10,14 @@ let f request =
   <h1>Babillard is love ❤️</h1>
   <br />
   <div class="row mb-3">
-    <div class="col-md-6">
+    <div class="col-lg-6 col-md-12">
       <div id="map"></div>
       <br />
       <button class="btn btn-primary" id="geolocalize">Geolocalize me</button>
       <button class="btn btn-primary off" id="return-button">Return</button>
       <%s! new_thread_button %>
     </div>
-    <div class="col-md-6">
+    <div class="col-lg-6 col-md-12">
 
     <div class="thread-preview on" id="thread-preview"></div>