How do I view the source-code of Bootstrap CSS classes?

I’d like to view the CSS source-code for bootstrap classes to learn better CSS and also to better override the bootstrap classes. I was hoping there would be an in-depth reference with source-code, but I had no such luck finding such a resource online. I have downloaded bootstrap, so I was wondering where to find the CSS within the bootstrap-3.3.6 directory for something specific like img-responsive.

Thanks in advance!


@P1xt gave a great answer! :smile_cat:

In addition to this, you can use chrome developer tools to inspect elements with bootstrap classes in your page. The chrome developer tools can tell all classes on an element, and all styles associated with each class.

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