we open a special popup from a button with this code:

res = {  
    'type': 'ir.actions.act_window',
    'name': ('Dummy'),
    'res_model': 'sale.order.line',
    'view_type': 'form',
    'view_mode': 'tree,form',
    'view_id': False,
    'target': 'new',
    'views': [(tree_id, 'tree'), (form_id, 'form')],
    'context': {
        'default_product_ids': [self.id]
    }
}

is it possible to overwrite the width of this popup? i just want to change the width for this single popup and not the global css for all this inline popups.