Add changeset

GitbookIO · Sep 24, 2024 · ef7e856 · ef7e856
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diff --git a/.changeset/pink-feet-bake.md b/.changeset/pink-feet-bake.md
@@ -0,0 +1,5 @@
+---
+'gitbook': patch
+---
+
+Include offset in calculations of whether scrollable element is in view
diff --git a/packages/gitbook/src/components/TableOfContents/TOCScroller.tsx b/packages/gitbook/src/components/TableOfContents/TOCScroller.tsx
@@ -66,5 +66,8 @@ function isOutOfView(tocItem: HTMLElement, tocContainer: HTMLElement) {
     const tocItemTop = tocItem.offsetTop;
     const containerTop = tocContainer.scrollTop;
     const containerBottom = containerTop + tocContainer.clientHeight;
-    return tocItemTop < containerTop + TOC_ITEM_OFFSET || tocItemTop > containerBottom - TOC_ITEM_OFFSET;
+    return (
+        tocItemTop < containerTop + TOC_ITEM_OFFSET ||
+        tocItemTop > containerBottom - TOC_ITEM_OFFSET
+    );
 }