The plugin doesn't provided any style out of the box. You can do whatever you want.
We used Boostrap here for instance.
<div role="checkbox" aria-checked="false">
<button type="button" tabindex="-1">Do you want to click me?</button>
<div style="display: none;">
<input id="option" name="option" value="false" type="checkbox" />
</div>
</div>
import Checkbox from '@19h47/checkbox';
const $checkbox = document.querySelector('[role="checkbox"]');
const checkbox = new Checkbox($checkbox);
checkbox.init();
import { CheckboxGroup } from '@19h47/checkbox';
const $element = document.querySelector('[role="group"]');
const checkboxgroup = new CheckboxGroup($element);
checkbox.init();