Make text fit into buttons on small screens

wiki/src/install/inc/stylesheets/assistant.css

@@ -88,6 +88,11 @@ td, th {
   font-family: "Source Sans Pro Regular", "DejaVu Sans", "Verdana", sans-serif;
   letter-spacing: 1px;
 }
+@media all and (max-width: 480px) {
+    .panel-primary {
+        height: auto;
+    }
+}
 
 .two-lines {
   padding: 4px;