Cara mempercantik Form Django dengan crispy form

pip install django-crispy-forms

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'crispy_forms',
    'accounts',
]

CRISPY_TEMPLATE_PACK = 'bootstrap4'

from django.db import models
from django.contrib.auth.models import User

# Create your models here.

class Category(models.Model):
    name = models.CharField(max_length=200, null=True)

    def __str__(self):
        return self.name


class Tag(models.Model):
    name = models.CharField(max_length=200, null=True)

    def __str__(self):
        return self.name


class Brand(models.Model):
    name = models.CharField(max_length=200, null=True)

    def __str__(self):
        return self.name


class Product(models.Model):
    name = models.CharField(max_length=200, null=True)
    price = models.FloatField(null=True)
    category = models.ForeignKey(
        Category, null=True, on_delete=models.SET_NULL)
    brand = models.ForeignKey(Brand, null=True, on_delete=models.SET_NULL)
    date_created = models.DateTimeField(auto_now_add=True, null=True)
    product_pict = models.ImageField(null=True, blank=True)
    description = models.TextField(null=True, blank=True)
    tag = models.ManyToManyField(Tag)

    def __str__(self):
        return "{} - {} - {} ".format(self.name, self.category, self.price)

from django.contrib.auth.models import User
from django.forms import ModelForm
from django.contrib.auth.forms import UserCreationForm
from django import forms
from .models import *


class productForm(ModelForm):
    class Meta:
        model = Product
        fields = '__all__'
        widgets = {
            'name': forms.fields.TextInput(
                attrs={
                    'id': '',
                    'placeholder': 'Nama Product',
                    'class': ''
                }
            ),
            'price': forms.fields.TextInput(
                attrs={
                    'id': '',
                    'placeholder': 'Harga dalam $USD',
                    'class': ''
                }
            ),
            'category': forms.fields.Select(
                attrs={
                    'id': '',
                    'placeholder': 'Pilih Category',
                    'class': ''
                }
            ),
            'brand': forms.fields.Select(
                attrs={
                    'id': '',
                    'placeholder': 'Pilih Brand',
                    'class': ''
                }
            ),
        }

{% extends 'accounts/admin/base.html' %}
{% load static %}
{% load crispy_forms_tags %}

{% block content %}
    

        {% csrf_token %}
        

            

                {{form.name|as_crispy_field}}
                {{form.price|as_crispy_field}}
                {{form.category|as_crispy_field}}
                {{form.brand|as_crispy_field}}
                {{form.tag|as_crispy_field}}
            
            
            

                {{form.description|as_crispy_field}}
                {{form.product_pict|as_crispy_field}}
            
        
       
        

    

    

    
    
{% endblock content %}