diff --git a/doc/_static/wsme.css b/doc/_static/wsme.css
index 07df77a..09675f6 100644
--- a/doc/_static/wsme.css
+++ b/doc/_static/wsme.css
@@ -1,15 +1,5 @@
 @import "agogo.css";
 
-div.header,
-div.content,
-div.footer {
-    width: 60em;
-}
-
-div.document {
-    width: 40em;
-}
-
 table.docutils {
     margin: 0;
     padding: 0;
diff --git a/doc/conf.py b/doc/conf.py
index e706239..8fb3126 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -93,6 +93,10 @@ pygments_style = 'sphinx'
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 html_theme = 'agogo'
+html_theme_options = {
+    "pagewidth": "60em",
+    "documentwidth": "40em",
+}
 
 html_style = 'wsme.css'