regenerate github css

sindresorhus · sindresorhus · commit efc0dc1a3be1 · 2014-12-25T18:03:44.000+07:00
diff --git a/github-markdown.css b/github-markdown.css
@@ -617,3 +617,9 @@
   margin: 0.3em 0 0.25em -1.6em;
   vertical-align: middle;
 }
+
+.markdown-body :checked+.radio-label {
+  z-index: 1;
+  position: relative;
+  border-color: #4183c4;
+}
