diff --git a/content/html4css1.css b/content/common/html4css1.css
similarity index 100%
rename from content/html4css1.css
rename to content/common/html4css1.css
diff --git a/content/kwant.css b/content/common/kwant.css
similarity index 100%
rename from content/kwant.css
rename to content/common/kwant.css
diff --git a/templates/base.mako b/templates/base.mako
index bc2d28a82f01fa0779a2c2fc0ac427d3641c2da1..10039ee46053017984103741dad0f48525d97add 100644
--- a/templates/base.mako
+++ b/templates/base.mako
@@ -5,7 +5,7 @@
 
 <head>
 <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
-<link href="/kwant.css" rel="stylesheet" type="text/css" />
+<link href="/common/kwant.css" rel="stylesheet" type="text/css" />
 <title><%block name="title">kwant: quantum transport simulation package</%block></title>
 <%block name="extra_head" />\
 </head>