Layout Plugin Admin Pages: Use BootStrap? [closed]

WordPress has a Settings API that allows you to register and create default admin-style inputs. It also takes care of loading and saving these settings in your database. The API is fairly verbose, but its documentation covers everything you need to know about it.

If you value sticking to the WP standards/conventions, I would suggest using it instead of injecting foreign CSS (even if it is something as widely used as bootstrap) and possibly messing up unexpected parts of your admin panel.

If you need more control over the way your admin page looks, just hand-craft those few lines of CSS or copy them over from bootstrap if you feel really lazy.