See #231 for context

We should include in either the example page or our readme that we style some elements like <dialog> that are not supported by other browsers. You can check caniuse for browser support for HTML elements.

We would take a pull request that would add this to the documentation. Ideally, you would check all the HTML elements in the example page

When start clicking number buttons everything is ok, but if I start number with 0 this zero remains, while it should be overriten by the next non-zero number :)