diff --git a/IPython/frontend/html/notebook/static/prettify/prettify.css b/IPython/frontend/html/notebook/static/prettify/prettify.css
index d44b3a2..33b5483 100644
--- a/IPython/frontend/html/notebook/static/prettify/prettify.css
+++ b/IPython/frontend/html/notebook/static/prettify/prettify.css
@@ -1 +1,48 @@
-.pln{color:#000}@media screen{.str{color:#080}.kwd{color:#008}.com{color:#800}.typ{color:#606}.lit{color:#066}.pun,.opn,.clo{color:#660}.tag{color:#008}.atn{color:#606}.atv{color:#080}.dec,.var{color:#606}.fun{color:red}}@media print,projection{.str{color:#060}.kwd{color:#006;font-weight:bold}.com{color:#600;font-style:italic}.typ{color:#404;font-weight:bold}.lit{color:#044}.pun,.opn,.clo{color:#440}.tag{color:#006;font-weight:bold}.atn{color:#404}.atv{color:#060}}pre.prettyprint{padding:2px;border:1px solid #888}ol.linenums{margin-top:0;margin-bottom:0}li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}li.L1,li.L3,li.L5,li.L7,li.L9{background:#eee}
\ No newline at end of file
+.pln{
+    color:#000
+}
+
+@media screen{
+    .str{
+        color:#BA2121;
+    }.kwd{
+        color:#008000;
+        font-weight: bold;
+    }.com{
+        color:#408080;
+        font-style: italic;
+    }.typ{
+        color:#606
+    }.lit{
+        color:#666666;
+    }.pun,.opn,.clo{
+    }.tag{
+        color:#008
+    }.atn{
+        color:#606
+    }.atv{
+        color:#080
+    }.dec,.var{
+        color:#606
+    }.fun{
+        color:red
+    }
+}
+
+pre.prettyprint{
+    padding:2px;
+    border:1px solid #888
+}
+
+ol.linenums{
+    margin-top:0;
+    margin-bottom:0
+}
+
+li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{
+    list-style-type:none
+}
+
+li.L1,li.L3,li.L5,li.L7,li.L9{
+    background:#eee
+}
\ No newline at end of file