JSFiddle - React, Tailwind, and code Playground

HTML

<body class="application">

<!-- content -->

<section class="main-body">

<div class="container-fluid">

    <div class="row-fluid" id="content">

                    <!-- breadcrumbs -->
<div>
<div class="bootstrap-widget-content" id="yw3"><p class="help">

</p><p class="note">The form</p><form onsubmit="window.location.href = 'thankyou.html'; return false;" class="well form-horizontal" id="yw0" action="form.html" method="post"><div style="visibility:hidden"><input type="hidden" value="1" name="yform_35d652cf" id="yform_35d652cf" /></div>
<div class="control-group "><label class="control-label required" for="Applicant_firstname">Name <span class="required">*</span></label><div class="controls"><input class="span6" name="Applicant[firstname]" id="Applicant_firstname" type="text" /><span class="help-inline error" id="Applicant_firstname_em_" style="display: none"></span></div></div>
<div class="control-group "><label class="control-label required" for="Applicant_lastname">Last name <span class="required">*</span></label><div class="controls"><input class="span6" name="Applicant[lastname]" id="Applicant_lastname" type="text" /><span class="help-inline error" id="Applicant_lastname_em_" style="display: none"></span></div></div>
<div class="control-group "><label class="control-label required" for="Applicant_email">E-mail <span class="required">*</span></label><div class="controls"><input class="span6" name="Applicant[email]" id="Applicant_email" type="text" /><span class="help-inline error" id="Applicant_email_em_" style="display: none"></span></div></div>
<div class="control-group "><label class="control-label" for="Applicant_phone">Phone</label><div class="controls"><input class="span2" name="Applicant[phone]" id="Applicant_phone" type="text" /><span class="help-inline error" id="Applicant_phone_em_" style="display: none"></span></div></div>
<div class="control-group "><label class="control-label" for="Applicant_address">Adress</label><div class="controls"><input...