The focus attribute provides feedback to the users, informing them that the combobox component is ready for use.

```html
<div class="h-[260px] min-w-[200px] md:min-w-0 max-w-[400px]">
  <sd-combobox label="Label">
    <sd-option value="option-1">Option 1</sd-option>
    <sd-option value="option-2">Option 2</sd-option>
    <sd-option value="option-3">Option 3</sd-option>
  </sd-combobox>
</div>
```