If you want to use external js libraries like jQuery, mootools mojo etc using Frameworks & Extensions section, but there are no Bootstrap libraries available yet!!
So how to configure your fiddle to support Bootstrap
1. Open a new fiddle.
2. As we require jQuery for bootstrap add it from Frameworks & Extensions.
3. Now open "External Resources" tab and here you can add external links for js and css files.
4. Add http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js
5. Add http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css
Thats it!! Now your fiddle is bootstrap configured. Lets see an Example,
If you check the resource tab in the above example you will see,
Following resources are loaded into result: