<form action="/action_page.php"> <label for="cars">Choose a car:</label> <select name="cars" id="cars" required> <option value="">None</option> <option value="volvo">Volvo</option> <option value="saab">Saab</option> <option value="mercedes">Mercedes</option> <option value="audi">Audi</option> </select> <br><br> <input type="submit" value="Submit"> </form>