fix(code-block): code block header sticky top error inside admonition content

apps/test/content/posts/codeblock-test.md

@@ -148,6 +148,26 @@ function add(a, b) {
 
     <p>Lorem ipsum dolor sit amet, graecis denique ei vel, at duo primis mandamus. Et legere ocurreret pri, animal tacimates complectitur ad cum. Cu eum inermis inimicus efficiendi. Labore officiis his ex, soluta officiis concludaturque ei qui, vide sensibus vim ad.</p>
 
+## Code block inside other blocks
+
+> [!NOTE]-
+>
+> ```js {mode="classic"}
+> function add(a, b) {
+>   return a + b
+> }
+> ```
+
+{{< details "Code Block inside Details" >}}
+
+```js {mode="classic"}
+function add(a, b) {
+  return a + b
+}
+```
+
+{{< /details >}}
+
 ## Highlighting
 
 Highlighting in code fences is enabled by default.