Use the `playing` attribute to show/hide the play-button.

```html
<sd-video playing>
  <img
    alt="Video highlighting Union Investment's digital transformation through a design system named Solid that enhances accessibility, sustainability, and efficiency."
    class="w-[854px] aspect-video cover"
    src="./placeholders/images/union-investment.png"
  />
</sd-video>
```