diff --git a/index.html b/index.html
index 229bda2..1aabe35 100644
--- a/index.html
+++ b/index.html
@@ -260,6 +260,7 @@
 	#box {
 		position: relative;
 		height: 60%;
+		overflow-y: auto;
 		overflow: auto;
 		overflow-x: hidden;
 		margin: 0 0 1.563em 0;