diff --git a/doc/common/_templates/layout.html b/doc/common/_templates/layout.html
new file mode 100644
index 0000000..ea09440
--- /dev/null
+++ b/doc/common/_templates/layout.html
@@ -0,0 +1,4 @@
+{% extends "!layout.html" %}
+{% block extrahead %}
+    <link rel="stylesheet" href="{{ pathto("_static/css/theme_overrides.css", True) }}" type="text/css">
+{% endblock %}
diff --git a/doc/common/conf.py b/doc/common/conf.py
index e74adee..5aba2da 100644
--- a/doc/common/conf.py
+++ b/doc/common/conf.py
@@ -132,12 +132,6 @@ add_module_names = False  # Hide module name
 if ON_RTD:
     html_theme = 'default'
     html_context = {
-        'css_files': [
-            'https://media.readthedocs.org/css/sphinx_rtd_theme.css',
-            'https://media.readthedocs.org/css/readthedocs-doc-embed.css',
-            '_static/contentui.css',
-            '_static/css/theme_overrides.css',
-        ],
         'disclaimer': _DISCLAIMER,
     }
 else:
@@ -145,10 +139,6 @@ else:
     html_theme = 'sphinx_rtd_theme'
     html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
     html_context = {
-        'css_files': [
-            '_static/contentui.css',
-            '_static/css/theme_overrides.css',
-        ],
         'disclaimer': _DISCLAIMER,
     }