Ví dụ về thẻ select Code: <!DOCTYPE html> <html> <body> <form action="/demo/action_page.php"> <select name="cars"> <option value="volvo">Volvo</option> <option value="saab">Saab</option> <option value="fiat">Fiat</option> <option value="audi">Audi</option> </select> <br><br> <input type="submit" value="Gửi"> </form> </body> </html> Kết quả: