diff --git a/doc/source/conf.py b/doc/source/conf.py
index 38055b64..28ea3264 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -88,7 +88,7 @@ extensions = [
 ]
 
 #---sphinx.ext.inheritance_diagram config
-inheritance_graph_attrs = dict(rankdir="TB", dpi=1200)
+inheritance_graph_attrs = dict(rankdir="LR", dpi=1200)
 
 #----- Autodoc
 #import sys
@@ -250,6 +250,9 @@ html_theme = 'sphinx_rtd_theme'
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
+def setup(app):
+    app.add_stylesheet('wide.css')
+
 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied
 # directly to the root of the documentation.