I want to have the menu on top of any other window. But it seems z-index isn't working. This is my menu:

```
@(Html.Kendo().Menu()
    .Name("menu").HtmlAttributes(new { @style = "z-index: 50;"})
    .Items(items =>
    {

```

And this is my DOM:
![enter image description here](https://i.stack.imgur.com/gLsvJ.png)