To install Bootstrap 4 onto your web page, view the source of the Skeleton page (dtc355.net/bootstrap-examples/skeleton.html), then copy the entire thing and paste it into your own HTML file.

Bootstrap 4 examples:

• Rows and columns grid
• Jumbotron and navbar
• Contact form
• Google Analytics and AddThis
• Advanced: Dropdown menus in navbar
• Advanced: Photo and text carousel (slideshow)
• Advanced: complete Bootstrap 4 web page with custom CSS (using icons from FlatIcon and photos from Unsplash)

Bootstrap 4 references:

• Bootstrap 4: Getting Started
• Bootstrap 4: Components Reference
• W3C: Bootstrap 4 Getting Started