请问有没有人可以告诉我如何给选项值分配css类。 我想用小图片更改每个选项的背景,那么我该怎样在wtforms和css中做到呢?
class RegisterForm(Form):
username = TextField('username', [validators.Length(min=3, max=50), validators.Required()])
img_url = SelectField('avatar',
choices=[('static/images/avatars/1.jpg', '1'),
('static/images/avatars/2.jpg', '2'),
('static/images/avatars/3.jpg', '3'),
('static/images/avatars/4.jpg', '4'),
('static/images/avatars/5.jpg', '5'),
('static/images/avatars/6.jpg', '6'),
('static/images/avatars/7.jpg', '7'),
('static/images/avatars/8.jpg', '8'),
('static/images/avatars/9.jpg', '9'),
('static/images/avatars/10.jpg','10')])