“Entrada de data de Mozilla” Respostas de código

Entrada de data de Mozilla

<form>
  <label>Enter your birthday:
    <input type="date" name="bday" required pattern="\d{2}-\d{2}-\d{4}">
    <span class="validity"></span>
  </label>
  <p>
    <button>Submit</button>
  </p>
</form>