For example, the
For a more comprehensive solution, we can use tools such as Modernizr or Polyfill.io to automatically identify and provide all of the polyfills that our website might need, ensuring that it can run as smoothly as possible on older browsers.
Let’s implement Polyfill.io in our Pleasant Cafe website. Polyfill.io will check and apply polyfills for CSS features that are not natively supported by older browsers.
<head> element of index.html, add the following