Bootstrap components: Overview HTML5 doctype Mobile first Typography and links Normalize.css Container Grid system Typography Code Tables Forms Buttons Images Helper classes Responsive [...]

Bootstrap is a mix of files … bootstrap/ ├── less/ ├── js/ ├── fonts/ ├── dist/ │ ├── css/ │ ├── js/ │ [...]

Go to http://getbootstrap.com and download the different versions … I suggest you download the Source code [...]