Bootstrap's grid program is your ally in attaining responsiveness. It means that you can generate adaptable layouts that adjust dependant on display measurement. For instance:templates_dark = ['bootstrap_dark', 'cerulean_dark', 'cosmo_dark', 'cyborg_dark', 'darkly_dark', 'flatly_dark', 'journal_dark', 'litera_dark', 'lumen_dark', 'lux_dark', 'mater