diff --git a/source/conf.py b/source/conf.py
index a3dafc7..fbe463a 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -68,6 +68,8 @@
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
+# Custom css file
+html_css_files = ["style.css"]
 
 # Don't add .txt suffix to source files (available for Sphinx >= 1.5):
 html_sourcelink_suffix = ''