Drilldowns use the standard [Menu](menu.html#nested-style) syntax, using `<ul>`, `<li>`, and `<a>`. Add `data-drilldown` to the root menu to set up the drilldown.
-To create sub-menus, place a `<ul>` *next to* an `<a>`. Clicking that `<a>` will then open the `<ul>` it's next to.
+To create sub-menus, place a `<ul>` *next to* an `<a>`. Clicking that `<a>` will then open the `<ul>` that it's next to.
Any `<a>` without a submenu will function like a normal link.
</ul>
```
+<div class="primary callout">
+ <p>The drilldown menu takes on the height of the tallest menu in the hierarchy, so the menu doesn't change height as the user navigates it.</p>
+</div>
+
<ul class="menu" data-drilldown style="width: 200px" id="m1">
<li>
<a href="#">Item 1</a>