HTML5 Number Input - Always show 2 decimal places

Question

You can't really do this just with HTML, but you a halfway step might be:

<input type='number' step='0.01' value='0.00' placeholder='0.00' />

Solved following the suggestions and adding a piece of jQuery to force the format on integers:

parseFloat($(this).val()).toFixed(2)

Using the step attribute will enable it. It not only determines how much it's supposed to cycle, but the allowable numbers, as well. Using step="0.01" should do the trick but this may depend on how the browser adheres to the standard.

<input type='number' step='0.01' value='5.00'>

The solutions which use input="number" step="0.01" work great for me in Chrome, however do not work in some browsers, specifically Frontmotion Firefox 35 in my case.. which I must support.

My solution was to jQuery with Igor Escobar's jQuery Mask plugin, as follows:

$(document).ready(function () {
  $('.usd_input').mask('00000.00', { reverse: true });
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.mask/1.14.16/jquery.mask.min.js" integrity="sha512-pHVGpX7F/27yZ0ISY+VVjyULApbDlD0/X0rgGbTqCE7WFW5MezNTWG/dnhtbBuICzsd0WQPgpE4REBLv+UqChw==" crossorigin="anonymous"></script>

<input type="text" autocomplete="off" class="usd_input" name="dollar_amt">

This works well, of course one should check the submitted value afterward :) NOTE, if I did not have to do this for browser compatibility I would use the above answer by @Rich Bradshaw.