diff --git a/doc/api_assets/style.css b/doc/api_assets/style.css
index b093b2c3fe11fd..5e27e4d967235a 100644
--- a/doc/api_assets/style.css
+++ b/doc/api_assets/style.css
@@ -72,7 +72,8 @@ em code {
   background: #d2d2d2;
   background-clip: padding-box;
   border: 3px solid #fff;
-  border-radius: 5px;
+  border-left-width: 9px;
+  border-radius: 0px;
 }
 
 ::-webkit-scrollbar-thumb:active {
@@ -81,7 +82,20 @@ em code {
 }
 
 ::-webkit-scrollbar {
-  width: 10px;
+  width: 16px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  border-width: 3px;
+  border-radius: 5px;
+}
+
+#column2::-webkit-scrollbar-track {
+  background: #333;
+}
+
+#column2::-webkit-scrollbar-thumb {
+  border-color: #333;
 }
 
 #changelog #gtoc {