min 和 max 属性的使用 - 在线编辑器

          <form action="demo_form.html">
  Enter a date before 1980-01-01:
  <input type="date" name="bday" max="1979-12-31"> Enter a date after 2000-01-01:
  <input type="date" name="bday" min="2000-01-02"> Quantity (between 1 and 5):
  <input type="number" name="quantity" min="1" max="5">
  <input type="submit">
</form>
        