Question

what happens if you view a new html5 form input type in an older browser

Answer 1

thank you for asking the question !!!

All modern browsers.support HTML5 and all browsers (old and  new) handle all unrecognized elements as inline elements. You can teach older browsers so that they can handle unknown HTML5 elements. Some browsers will ignore these element and some treat them as errors. you need to adjust the compatibility by adding CSS rule to your web page which cause these elements to behave like "block elements".

header, section, footer, aside, nav, main, article, figure
{
    display: block;
}

You can also investigate some hard but useful techniques such as "rebuilding" the widgets with JavaScript. 

i hope it will help.

Answer 2

Answer:

It reverts to a standard text input

Explanation: