Adding a country code picker to a phone number input field enhances (ok)

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.8/css/intlTelInput.min.css" />
<input type="tel" id="phone" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.8/js/intlTelInput.min.js"></script>
<script>
  var input = document.querySelector("#phone");
  window.intlTelInput(input, {
    utilsScript: "https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.8/js/utils.js",
  });
</script>