diff --git a/nsupdate/main/templates/main/about.html b/nsupdate/main/templates/main/about.html
index d43c31f..c000fcd 100644
--- a/nsupdate/main/templates/main/about.html
+++ b/nsupdate/main/templates/main/about.html
@@ -4,7 +4,7 @@
 {% block content %}
     <div class="row">
        <h1>{% blocktrans %}About the {{ WWW_HOST }} service{% endblocktrans %}</h1>
-        <div class="col-lg-4">
+        <div class="col-md-4">
             <h2>{% trans "What's this?" %}</h2>
             <p>
                 {% blocktrans %}{{ WWW_HOST }} is a <b>dynamic dns service</b>.{% endblocktrans %}
@@ -18,7 +18,7 @@
                 {% blocktrans %}{{ WWW_HOST }} is <b>simple, usable, free, friendly, secure and respects your privacy</b>.{% endblocktrans %}
             </p>
         </div>
-        <div class="col-lg-4">
+        <div class="col-md-4">
             <h2>{% trans "Why another one?" %}</h2>
             <p>
                 {% blocktrans %}As far as we know, there was no service yet that is <em>not</em>:{% endblocktrans %}
@@ -31,7 +31,7 @@
                     between a ton of commercial-only features{% endblocktrans %}</li>
             </ul>
         </div>
-        <div class="col-lg-4">
+        <div class="col-md-4">
             <h2>{% trans "How is it?" %}</h2>
             <p>
                 {% trans "You can just try it using the test account (see Register page)." %}
@@ -49,7 +49,7 @@
         </div>
     </div>
     <div class="row">
-        <div class="col-lg-4">
+        <div class="col-md-4">
             <h2>{% trans "Fair use of the service" %}</h2>
             <p>
                 {% trans "The only thing we expect from you is fair use of this service:" %}
@@ -67,7 +67,7 @@
                 related to unfair use of the service - at any time and without prior notice.{% endblocktrans %}
             </p>
         </div>
-        <div class="col-lg-4">
+        <div class="col-md-4">
             <h2>{% trans "No warranties" %}</h2>
             <p>
                 {% trans "This is free software and a free service, there are no warranties." %}
@@ -76,7 +76,7 @@
                 {% trans "If it breaks, it breaks." %}
             </p>
         </div>
-        <div class="col-lg-4">
+        <div class="col-md-4">
             <h2>{% trans "Service Contact" %}</h2>
             <p>
                 {{ SERVICE_CONTACT }}