diff --git a/steps/annex/code-base-overview.html b/steps/annex/code-base-overview.html
index 93b5574..5558b0a 100644
--- a/steps/annex/code-base-overview.html
+++ b/steps/annex/code-base-overview.html
@@ -690,6 +690,16 @@
.dark .file-tree ul li::before {
background-color: #475569;
}
+
+ /* Hide scrollbar for Chrome, Safari and Opera */
+ .no-scrollbar::-webkit-scrollbar {
+ display: none;
+ }
+ /* Hide scrollbar for IE, Edge and Firefox */
+ .no-scrollbar {
+ -ms-overflow-style: none; /* IE and Edge */
+ scrollbar-width: none; /* Firefox */
+ }