Make a slide show.

Make a responsive card grid.

Make a navbar and footer you can reuse.

Make a navbar for Webwear, a website selling wearable browsers.

Make a jumbotron, with whatever message you like.

Make a responsive page about pancakes.

Four dogs, side-by-side or stacked, depending on the screen size.

Make a page with a header, footer, and two sidebars.

Use a Bootstrap theme to make a page look different.

Override Bootstrap's styles with our own.