JSFiddle - React, Tailwind, and code Playground

HTML

<input type="submit" id="submit" value="Оформить заказ" />
<div class="loading">
<img src="http://sierrafire.cr.usgs.gov/images/loading.gif" />
</div>

CSS

.loading
{
 display:none;
 position:absolute;
 top:0;
 background: rgba(0, 0, 0, 0.6); 
}

JavaScript

$('#submit').click(function(){
                   $('.loading').show(250);
                   return false;
                 });