Toolbar for markmap.
It embeds a few buttons to communicate with a markmap.
$ npm i markmap-toolbar
import { Toolbar } from 'markmap-toolbar';
const { el } = Toolbar.create(mm);
el.style.position = 'absolute';
el.style.bottom = '0.5rem';
el.style.right = '0.5rem';
container.append(el);