from flask_wtf import FlaskForm from wtforms import fields from wtforms.fields import html5 from wtforms.validators import Optional class CountdownAdminForm(FlaskForm): hours = html5.IntegerField("Hours", [Optional()], render_kw = {"min":0, "max":999, "placeholder": "00"}) minutes = html5.IntegerField("Minutes", [Optional()], render_kw = {"min":0, "max":59, "placeholder": "00"}) seconds = html5.IntegerField("Seconds", [Optional()], render_kw = {"min":0, "max":59, "placeholder": "00"})