You use a JavaScript polyfill which handles browsers which don't yet support them. For example, I recently launched a project using <input type=range> with a [modernizr.load](http://modernizr.com/docs/#load) test which uses https://github.com/freqdec/fd-slider if the browser doesn't have native support.

As for styling the native controls, I generally recommend thinking twice about that as the usability benefits of having a familiar standard control are significant but you should read up on the Shadow DOM and the emerging CSS support for it: http://glazkov.com/2011/01/14/what-the-heck-is-shadow-dom&#x...;