I need to add responsive design features to my web application using Twitter Bootstrap. I just want the responsive behavior, I\'m not interested in the typography, components or
It's been a while since this question was asked, but maybe now you can forego Bootstrap altogether and use CSS Grid! (it's simpler, neater, more flexible and faster). See this cool article: Stop using Bootstrap — create a practical CSS Grid template for your component based UI
Made a Grunt build with the Bootstrap 3.3.5 grid only:
https://github.com/horgen/grunt-builds/tree/master/bootstrap-grid
~10KB minimized.
If you need some other parts from Bootstrap just include them in /src/less/bootstrap.less.
In Bootstrap 4, there are already separated files in their GitHub. You can find them here
https://github.com/twbs/bootstrap/tree/main/dist/css
Go to http://getbootstrap.com/customize/ and toggle just what you want from the BS3 framework and then click "Compile and Download" and you'll get the CSS and JS that you chose.
Open up the CSS and remove all but the grid. They include some normalize stuff too. And you'll need to adjust all the styles on your site to box-sizing: border-box - http://www.w3schools.com/cssref/css3_pr_box-sizing.asp
Checkout zirafa/bootstrap-grid-only. It contains only the bootstrap grid and responsive utilities that you need (no reset or anything), and simplifies the complexity of working directly with the LESS files.
I would suggest using MDO's http://getpreboot.com/ instead. As of v2, preboot
back ports the LESS mixins/variables used to create the Bootstrap 3.0 Grid System and is much more light weight than using the CSS generator. In fact, if you only include preboot.less
there is NO overhead because the entire file is made up of mixins/variables and therefore are only used in pre-compilation and not the final output.