From 6a94492238cf39cf33b1078cd52ed396dcd0571b Mon Sep 17 00:00:00 2001
From: Arashmidos <Arshiamidos@gmail.com>
Date: Mon, 2 Dec 2019 13:37:24 +0330
Subject: [PATCH] fix scroll issue (#1108)

* fix sidebar scrolling

* fix query selector
---
 src/theme/book.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/theme/book.js b/src/theme/book.js
index 186f9ae1..8ddd09d5 100644
--- a/src/theme/book.js
+++ b/src/theme/book.js
@@ -408,7 +408,7 @@ function playpen_text(playpen) {
 (function sidebar() {
     var html = document.querySelector("html");
     var sidebar = document.getElementById("sidebar");
-    var sidebarScrollBox = document.getElementById("sidebar-scrollbox");
+    var sidebarScrollBox = document.querySelector(".sidebar-scrollbox");
     var sidebarLinks = document.querySelectorAll('#sidebar a');
     var sidebarToggleButton = document.getElementById("sidebar-toggle");
     var sidebarResizeHandle = document.getElementById("sidebar-resize-handle");
@@ -505,7 +505,7 @@ function playpen_text(playpen) {
     }, { passive: true });
 
     // Scroll sidebar to current active section
-    var activeSection = sidebar.querySelector(".active");
+    var activeSection = document.getElementById("sidebar").querySelector(".active");
     if (activeSection) {
         sidebarScrollBox.scrollTop = activeSection.offsetTop;
     }