update mobile footer

public/assets/css/main.css

@@ -144,6 +144,13 @@ a:active {
     .impressum {
         padding: 3em !important;
     }
+
+    .column {
+        float: left;
+        width: 50% !important;
+        padding: 0px;
+        /* Should be removed. Only for demonstration */
+    }
 }
 
 @media only screen and (max-width: 465px) {