Fix for SFA logos on mobile

Signed-off-by: Jimmy McArthur <jimmy@tipit.net>

Author: jimmytipit

openstack.cn/index.html

@@ -231,6 +231,12 @@
     font-size: 80px;
 }
 
+@media all and (max-width: 767px) {
+  .session {
+    max-width: 50%;
+    min-width: 50%; } }
+
+
     </style>
 </head>