--- a/qrurls/static/qrurls/images.css	Fri Aug 30 02:36:56 2013 +0200
+++ b/qrurls/static/qrurls/images.css	Fri Aug 30 02:40:58 2013 +0200
@@ -17,10 +17,18 @@
     margin: auto;
     display: block;
     
-    /* Scale for portait-mode */
+    /* Scale down as necessary */
     max-width: 100%;
 }
 
+/* Heuristic for detecting mobile browsers */
+@media (orientation: portrait) {
+    div.container img {
+        /* Scale up to full-width on portait */
+        width: 100%;
+    }
+}
+
 div.footer {
     margin: 1em;
     padding: 1em;