diff --git a/assets/css/oof.css b/assets/css/oof.css
index 8a63ae8..99dc093 100644
--- a/assets/css/oof.css
+++ b/assets/css/oof.css
@@ -1,3 +1,12 @@
+/* mobile */
+
+@media only screen and (max-width: 600px) {
+  body {
+    background: url("../img/winxp.jpg");
+    background-repeat: repeat;
+  }
+}
+
 /* Works on Firefox */
 * {
   scrollbar-width: thin;