JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery-easing/1.3/jquery.easing.min.js"></script>
<div id="variable-div">
<!-- multistep form -->
<form id="msform">
	<!-- progressbar -->
	<ul id="progressbar">
		<li class="active">Description</li>
		<li>Preferences</li>
		<li>Done!</li>
	</ul>
	<!-- fieldsets -->
	<fieldset class="container">
        <div>
        <p class="fs-question">Question title</p>
		<textarea name="1" placeholder="e.g." rows="3"></textarea>
		<p class="fs-question">Question 2</p>
        <input type="text" name="2" placeholder="e.g." />
       	<input type="button" name="next" class="next action-button" value="Next" />
        </div>
	</fieldset>
	<fieldset>
		<p class="fs-title">Fieldset title</p>
		<p class="fs-subtitle">subtitle</p>
        <p class="fs-question">Question 3</p> 
        <input type="text" name="3" placeholder="e.g." />
   		<p class="fs-question">Question 4</p> 
		<input type="text" name="4" placeholder="e.g." />
		<input type="button" name="previous" class="previous action-button" value="Previous" />
		<input type="button" name="next" class="next action-button" value="Next" />
	</fieldset>
	<fieldset>
		<p class="fs-title">title</p>
		<h3 class="fs-subtitle">subtitle</h3>
   		<p class="fs-question">Question</p> 
		<textarea name="other" placeholder="e.g."></textarea>
        <p class="fs-question">question 5</p> 
		<input type="text" name="5" placeholder="e.g" />
        <p class="fs-question">question 6</p> 
		<input type="password" name="Password" placeholder="e.g" />
                <p class="fs-question">question 7</p> 
		<input type="text" name="7" placeholder="e.g" />
                <p class="fs-question">question 8</p> 
		<input type="text" name="8" placeholder="e.g" />
      	<input type="button" name="previous" class="previous action-button" value="Previous" />
		<input type="submit" name="submit" class="submit action-button" value="Submit and create account" />
          ...

CSS

/*custom font*/
@import url(http://fonts.googleapis.com/css?family=Montserrat);

/*basic reset*/

body {
	font-family: montserrat, arial, verdana;
}
/*form styles*/
#msform {
	width: 800px;
	margin: 0px auto;
	text-align: center;
	position: relative;
	padding-bottom: 100px;
}
#msform fieldset {
	margin-left:auto;
	margin-right:auto;
	background: white;
	border: 0 none;
	border-radius: 10px;
	box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.2);
	padding: 20px 60px;
	margin-bottom: 100px;
	width: 85%;
	/*stacking fieldsets above each other*/
    position: absolute;
	

}
/*Hide all except first fieldset*/
#msform fieldset:not(:first-of-type) {
	display: none;
}
/*inputs*/
#msform input, #msform textarea {
	padding: 15px;
	border: 1px solid #ccc;
	border-radius: 3px;
	margin-bottom: 10px;
	width: 80%;
	box-sizing: border-box;
	font-family: montserrat;
	color: #2C3E50;
	font-size: 13px;
	margin: 0; 
}
/*buttons*/
#msform .action-button {
	width: auto;
	min-width:100px;
	background: #27AE60;
	font-weight: bold;
	color: white;
	border: 0 none;
	border-radius: 1px;
	cursor: pointer;
	padding: 10px 20px;
	margin: 10px 5px;
}
#msform .action-button:hover, #msform .action-button:focus {
	box-shadow: 0 0 0 2px white, 0 0 0 3px #27AE60;
}
/*headings*/
.fs-question {
text-align: left; 
padding: 10px 60px;
	margin: 0px;

}
.fs-title {
	font-size: 15px;
	text-transform: uppercase;
	color: #2C3E50;
	margin-bottom: 10px;
	padding: 0px;
	margin: 0px;
}
.fs-subtitle {
	font-weight: normal;
	font-size: 13px;
	color: #666;
	margin-bottom: 20px;
	padding: 0px;
	margin: 0px;
}
/*progressbar*/
#progressbar {
	margin-bottom: 30px;
	overflow: hidden;
	/*CSS counters to number the steps*/
	counter-reset: step;
}
#progressbar li {
	list-style-type: none;
	color: white;
	text-transform: uppercase;
	font-size: 13px;
	width: 33.33%;
	float: left;
	position: relative;
	text-shadow: 0px 1px 2px #000;
}
#progressbar li:before {
	content: counter(step);
	counter-increment: step;
	width: 20px;
	line-height:...

JavaScript

//jQuery time
var current_fs, next_fs, previous_fs; //fieldsets
var left, opacity, scale; 
//fieldset properties which we will animate 
var animating; //flag to prevent quick multi-click glitches

var mainDiv = $( '#variable-div' );
var currentFieldset = $('fieldset');
mainDiv.css('marginBottom', (currentFieldset.height() + 5) + 'px');

$(".next").click(function(){
	if(animating) return false;
	animating = true;
	
	current_fs = $(this).parent();
	next_fs = $(this).parent().next();
    mainDiv.css('marginBottom', (next_fs.height() + 5) + 'px');
	
	//activate next step on progressbar using the index of next_fs
	$("#progressbar li").eq($("fieldset").index(next_fs)).addClass("active");
    
	
	//show the next fieldset
	next_fs.show(); 
	//hide the current fieldset with style
	current_fs.animate({opacity: 0}, {
		step: function(now, mx) {
			//as the opacity of current_fs reduces to 0 - stored in "now"
			//1. scale current_fs down to 80%
			scale = 1 - (1 - now) * 0.2;
			//2. bring next_fs from the right(50%)
			left = (now * 50)+"%";
			//3. increase opacity of next_fs to 1 as it moves in
			opacity = 1 - now;
			current_fs.css({'transform': 'scale('+scale+')'});
            next_fs.css({'left': left, 'opacity': opacity});
		}, 
		duration: 800, 
		complete: function(){
			current_fs.hide();
			animating = false;
		}, 
		//this comes from the custom easing plugin
		easing: 'easeInOutBack'
	});
});

$(".previous").click(function(){
	if(animating) return false;
	animating = true;
	
	current_fs = $(this).parent();
	previous_fs = $(this).parent().prev();
    mainDiv.css('marginBottom', (previous_fs.height() + 5) + 'px');
	
	//de-activate current step on progressbar
	$("#progressbar li").eq($("fieldset").index(current_fs)).removeClass("active");
	
	//show the previous fieldset
	previous_fs.show(); 
	//hide the current fieldset with style
	current_fs.animate({opacity: 0}, {
		step: function(now, mx) {
			//as the opacity of current_fs reduces to 0 - stored in...