JSFiddle - React, Tailwind, and code Playground

HTML

<form action="">
    <fieldset class="step step1">
        fields1 ...
        <button class="continue">Continue</button>
    </fieldset>
    <fieldset class="step step2">
        fields2 ...
        <button class="back">Back</button>
        <button class="continue">Continue</button>
    </fieldset>
    <fieldset class="step step3">
        fields3 ...
        <button class="back">Back</button>
        <button class="submit">Submit</button>
    </fieldset>
</form>

JavaScript

$('.step1').siblings().hide(); // hide all except step 1

$('.continue').click(function(){
   $(this).closest('.step').hide().next('.step').show();
    return false;
});
$('.back').click(function(){
   $(this).closest('.step').hide().prev('.step').show();
    return false;
})