diff --git a/docs/stylesheets/extra.css b/docs/stylesheets/extra.css
index de2f3b5f9..d135d7210 100644
--- a/docs/stylesheets/extra.css
+++ b/docs/stylesheets/extra.css
@@ -3,7 +3,9 @@
 }
 
 .highlight .hll {
-    background-color: lavender
+    [data-md-color-scheme="default"] {
+        background-color: lavender;
+    }
 }
 
 .md-typeset table:not([class]) {