diff --git a/doc/api_assets/style.css b/doc/api_assets/style.css
index 1e82464cc93b..39e60b2aaecf 100644
--- a/doc/api_assets/style.css
+++ b/doc/api_assets/style.css
@@ -273,6 +273,7 @@ pre {
 }
 
 pre > code {
+  padding: 0;
   font-size: .8em;
 }