Bootstrap Demo Page

Resize this responsive page to see the effect!

Components

Buttons

btn-primary

btn-success

btn-danger

btn-warning

Card

(card-header bg-primary text-light)

Content

(card-body bg-light text-primary)

Cards can be created with or without card-header and card-body classes.

The cards can be nested to show subsets of the content
The cards can be nested to show subsets of the content
Cards can be created with a colored background and colored text. All components within the card will also get this text.

W3Schools - Bootstrap