Bootstrap

1. Container

1.1. container

1.2. container-fluid

2. Padding

2.1. p-{n}

2.2. pt-{n}

2.3. pb-{n}

3. Margin

3.1. ml-{n}

3.2. mr-{n}

3.3. my-{n}

4. Column

4.1. row

4.2. col

4.3. col-{size}-{n}

5. Display

5.1. display-{n}

6. Color

6.1. primary

6.2. success

6.3. info

6.4. warning

6.5. danger

6.6. secondary

6.7. dark

6.8. light

7. Table

7.1. table

7.2. table-striped

7.3. table-bordered

7.4. table-borderless

7.5. table-hover

7.6. thead-dark

7.7. thead-light

7.8. table-{color}

8. Image

8.1. img-fluid

8.2. float-right

8.3. mx-auto d-block

8.4. rounded

8.5. rounded-circle

8.6. img-thumbnail

9. Size

9.1. sm

9.2. md

9.3. lg

9.4. xl

10. Alert

10.1. alert

10.2. alert-{color}

11. Text

11.1. text-{color}

11.2. text-right

11.3. text-center

12. Background

12.1. bg-{color}

13. Button

13.1. btn

13.2. btn-{size}

13.3. btn-{color}

13.4. btn-outline-{color}

13.5. btn-block

14. Badge

14.1. badge

14.2. badge-{color}

14.3. badge-pill

15. Progress

15.1. progress

15.2. progress-bar

16. Spinner

16.1. spinner-border

16.2. spinner-grow

16.3. text-{color}

17. Pagination

17.1. pagination

17.2. page-item

17.3. page-link

17.4. active

17.5. disabled

18. Card

18.1. card

18.2. card-header

18.3. card-title

18.4. card-body

18.5. card-text

18.6. card-link

18.7. card-footer

18.8. card-img

19. Dropdown

19.1. dropdown

19.2. dropdown-toggle

19.3. dropdown-menu

19.4. dropdown-item

19.5. dropdown-header

20. Collapse

20.1. collapse

20.2. data-toggle="collapse"

20.3. data-target="#id"

21. Navbar

21.1. navbar-brand

21.2. nav-item

21.3. nav-link

21.4. navbar-toggler

21.5. navbar-dark | light

21.6. ml | mr | mx-auto

22. Form

22.1. form-group

22.2. form-control

23. Carousel

23.1. carousel

23.2. carousel-inner

23.3. carousel-item

23.4. carousel-control-prev

23.5. carousel-control-next

24. Modal

24.1. modal fade

24.2. modal-dialog

24.3. modal-content

24.4. modal-header

24.5. modal-title

24.6. modal-body

24.7. modal-footer