diff --git a/src/components/Post/Toc.astro b/src/components/Post/Toc.astro
index a92f6e8..141f433 100644
--- a/src/components/Post/Toc.astro
+++ b/src/components/Post/Toc.astro
@@ -41,7 +41,7 @@ const lowLevel = Math.min(...toc.map((v) => v.level));
     position: sticky;
     top: 60px;
     height: calc(100vh - 120px);
-    width: 100%;
+    bottom: -64px;
     overflow-y: auto;
     display: flex;
     flex-direction: column;