diff --git a/Documentation/conf.py b/Documentation/conf.py
index 6ab4783..c715610 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -316,9 +316,10 @@
 if  html_theme == 'alabaster':
     html_theme_options = {
         'description': get_cline_version(),
-        'font_size': '10pt',
         'page_width': '65em',
         'sidebar_width': '15em',
+        'font_size': 'inherit',
+        'font_family': 'serif',
     }
 
 sys.stderr.write("Using %s theme\n" % html_theme)
diff --git a/Documentation/sphinx-static/custom.css b/Documentation/sphinx-static/custom.css
index 9b36f7ab..45a624f 100644
--- a/Documentation/sphinx-static/custom.css
+++ b/Documentation/sphinx-static/custom.css
@@ -11,6 +11,7 @@
 /* Tighten up the layout slightly */
 div.body { padding: 0 15px 0 10px; }
 div.sphinxsidebarwrapper { padding: 1em 0.4em; }
+div.sphinxsidebar { font-size: inherit; }
 /* Tweak document margins and don't force width */
 div.document {
     margin: 20px 10px 0 10px;