JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.0.min.js"></script>
<form id="platba">
<label class="c-input c-radio">
  <input id="radio1" name="radio" type="radio" value="https://www.paypal.com/uk/webapps/mpp/home">
  <span class="c-indicator"></span>
  <img src="img/payments/paypal.png" width="80" style="margin-top:-5px">&nbsp; Paypal
</label>
<br />
<br />
<label class="c-input c-radio">
  <input id="radio2" name="radio" type="radio" value="http://www.mbank.cz/osobni/">
  <span class="c-indicator"></span>
  <img src="img/payments/mbank.png" width="80" style="margin-top:-5px">&nbsp; mBank
</label>
<br />
<br />
<label class="c-input c-radio">
  <input id="radio3" name="radio" type="radio" value="http://example.com/platebnikarta">
  <span class="c-indicator"></span>
  <img src="img/payments/visa_mastercard.png" width="80" style="margin-top:-5px">&nbsp; Platební karta
</label>
<hr>

<button type="submit" class="btn btn-primary">Pokračovat v placení</button>
</form>

JavaScript

$(document).ready(function() {
  $("#platba").submit(function(e) {
    e.preventDefault();
    var loc = $('input[name="radio"]:checked').val();
    window.open(loc, '_blank');
    //self.close ();
  });
});