for low-width-screen tests

test_app_1/templates/test_app_1/mybasePasteur.html

@@ -20,11 +20,11 @@
 {%block project_name %}TestApp{%endblock%}
 
 {% block content %}
-<div class="col-4">
+<div class="col-12 col-sm-4">
     <a href="aaa">aaa</a>
     {% crispy form %}
 </div>
-<div class="col-4">
+<div class="col-12 col-sm-4">
     <div class="card">
         <div class="card-header">
             The header
@@ -37,7 +37,7 @@
         </div>
     </div>
 </div>
-<div class="col-4">
+<div class="col-12 col-sm-col-4">
     <div class="btn-group  d-flex" role="group" aria-label="Get content">
         <a href="/data-source/30/update/" role="button" class="btn btn-outline-primary"><i class="fa fa-upload"></i>
             Update content</a>