JSFiddle - React, Tailwind, and code Playground

HTML

<form 
    onsubmit="document.getElementById('submit').disabled=true;document.getElementById('submit').value='Submitting, please wait...';"
    action="http://requestb.in/1llii7k1" 
    method="post">
  <input 
      name="firstname" 
      type="text"
      placeholder="First Name" 
      class="form-content"/>
  </br>
  <input 
      name="surname" 
      type="text" 
      placeholder="Surname" 
      class="form-content"/>
  </br>


  <div id="submitbutton">
    <input name="submit" type="submit" value="Submit" id="submit">
  </div>
</form>