From c80240e7f802ed4b00dd3906bf346f8d177800dc Mon Sep 17 00:00:00 2001
From: Suzanne Soy <jsmaniac.github@suzanne.soy>
Date: Tue, 21 Nov 2023 17:56:32 +0000
Subject: [PATCH] Fixed scrolling issue

---
 git-tutorial.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/git-tutorial.js b/git-tutorial.js
index 2b86547..55ecf7f 100644
--- a/git-tutorial.js
+++ b/git-tutorial.js
@@ -1177,7 +1177,12 @@ function ___scrollToLine(editor, line) {
   editor.addLineClass(line, 'background', 'scrolled-to-line');
   var editorOffset = ___getOffset(editor.getScrollerElement()).top;
   var lineOffset = editor.charCoords({line: line, ch: 0}, "local").top;
-  document.body.scrollTo(0, editorOffset + lineOffset - window.innerHeight/2);
+  var toOffset = editorOffset + lineOffset - window.innerHeight/2;
+  document.body.parentElement.scrollTo(0, toOffset);
+  if (document.body.parentElement.scrollTop == 0) {
+    // depending on the CSS, the scrollbar can belong to the HTML element or to the body element.
+    document.body.scrollTo(0, toOffset);
+  }
 }
 function ___toCodeMirror(ta) {
   var editor = CodeMirror.fromTextArea(ta, {