diff --git a/doc/api_assets/style.css b/doc/api_assets/style.css
index 1e82464cc93b79..c187079a26f98e 100644
--- a/doc/api_assets/style.css
+++ b/doc/api_assets/style.css
@@ -274,6 +274,7 @@ pre {
 
 pre > code {
   font-size: .8em;
+  padding: 0;
 }
 
 pre + h3 {