Here is my product class:
class ProductForm(ModelForm):
    long_desc = forms.CharField(widget=forms.Textarea)
    short_desc = forms.CharField(widget=forms.Textarea)
    class Meta:
        model = Product
And the template code...
{% for f in form %}
    {{ f.name }}:{{ f }}
{% endfor %}
f is the actual form element.
How can I change the width of a textarea form element if I used ModelForm to create it?