[adwf]

Bootstrap 3 is a responsive grid that uses media queries. I can trivially adjust the look of a site on desktop/tablet/mobile, all just by adding a few classes. When you add in the fact that they manage all the cross-browser/platform quirks for you, it's quite a winning proposition to use Bootstrap to start off a new site. You'll certainly end up overriding various colours, margins, etc. but that's the easiest part of CSS anyway.

[hiphopyo]

My point is that you don't need Bootstrap to use media queries. Nor to manage quirks when there are way simpler solutions available on GitHub.

These quirks are becoming less and less over time as well, as new browsers and devices start to follow the same standards, and major players are dropping support for old browsers (ie. Google is no longer supporting old versions of IE).