### Bug report

When a custom class or styles are set through the HtmlAttributes() method, they are not applied to the Stepper's element.

### Reproduction of the problem

1. Set a class in the Stepper's HtmlAttributes, e.g.,

```
.HtmlAttributes(new { @class = "test" })

```

2. Add a custom style in the Stepper's HtmlAttributes, e.g.,

```
.HtmlAttributes(new { style = "color: blue;" })

```

### Current behavior

The custom class/styles are not applied to the Stepper's wrapping element.

### Expected/desired behavior

The custom classes and styles are applied to the Stepper.

### Environment

* **Kendo UI version: 2022.1.412
* **jQuery version: 1.12.4
* **Browser: [all]