On `div`, with `overflow-y: scroll`, how can I scroll down with `keypress` `down` (no jQuery).

```html
<div class="data">
    ...
    number of data
</div>
<style>
    .data {
        background-color: blue;
        text-align: center;
        overflow-y: scroll;
        margin-left: 700px;
        margin-top: 50px;
        height: 400px;
        width: 150px;
    }
</style>

```

<https://codepen.io/SahilKatia/pen/GYVzxR>

Link to the [Angular Project](https://stackblitz.com/edit/dropdown1?file=app%2Fdropdown-manual.html).