JSFiddle - React, Tailwind, and code Playground

HTML

<!-- Container -->
<div class=" lp template1 infopaketcontainer startform depotform">

    <!-- Formulartitel -->
  <div class="row">
    <div class="col-sm-12 col-xs-12 col-md-12 col-lg-12">
      <div class="lp template1 infopakettitel">
        Depot eröffnen
      </div>  
    </div>
  </div>
  
  <!-- Kontonutzung -->
  <div class="row titelrow">
    <div class="col-sm-12 col-xs-12 col-md-12 col-lg-12">
      
      <div class="lp template1 infopaketuntertitel">
      Wie möchten Sie das Konto nutzen?
      </div>
    </div>
      
  </div>
  

  <!-- Formular -->

  <div class="row">
    <div class="col-sm-12 col-xs-12 col-md-12 col-lg-12">
      
      <form class="formdepot" action="/fileadmin/ext_api/depot_eroeffnen/depot_eroeffnen_post.php" method="post">
        
        <div class="row">
          <div class="col-sm-12 col-xs-12 col-md-3 col-lg-3">
            
            <label class="radio-inline">
              <input type="radio" name="kontotyp" class="requ" value="Einzelkonto" required checked />Einzelkonto
           </label>
            
            
          </div>
          <div class="col-sm-12 col-xs-12 col-md-3 col-lg-3">
            <label class="radio-inline">
              <input type="radio" name="kontotyp" class="requ" value="Gemeinschaftskonto" required />Gemeinschaftskonto
            </label>
          </div>
          
        </div>
      

      <div class="row even ">
        <div class="col-sm-12 col-xs-12 col-md-12 col-lg-12">


        <!-- Persönliche Angaben - 1. Antragsteller -->

        <div class="row titelrow">
          <div class="col-sm-12 col-xs-12 col-md-12 col-lg-12">
            
            <div class="lp template1 infopaketuntertitel">Persönliche Angaben - 1. Antragsteller</div>
            
          </div>
        </div>         
        
        <!-- 1. Zeile  -->
        <div class="row formzeile">

          <div class="col-sm-12 col-xs-12 col-md-6 col-lg-6">
            
            <div class="row">
...