Responsive navbar collapse in Bootsrap - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of a responsive navbar collapse in Bootstrap?

It makes the navigation menu adapt to different screen sizes by hiding menu items behind a toggle button on small screens, improving usability on mobile devices.

beginner

Which Bootstrap class is used to create the toggle button that shows or hides the collapsed navbar content?

The <code>navbar-toggler</code> class is used on a <button> element to create the toggle button for collapsing and expanding the navbar content.

intermediate

What attribute connects the toggle button to the collapsible navbar content in Bootstrap?

The data-bs-target attribute on the toggle button points to the ID of the collapsible navbar content, linking them for toggle functionality.

intermediate

How does Bootstrap decide when to collapse the navbar?

Bootstrap uses responsive breakpoint classes like navbar-expand-lg to determine at which screen width the navbar should expand or collapse automatically.

intermediate

Name one accessibility feature to include in a responsive navbar toggle button.

Use aria-controls to link the button to the collapsible content, aria-expanded to indicate toggle state, and aria-label to describe the button purpose for screen readers.

Which Bootstrap class makes the navbar expand only on large screens and collapse on smaller ones?

A navbar-collapse

B navbar-expand-lg

C navbar-toggler

D navbar-nav

The class navbar-expand-lg tells Bootstrap to keep the navbar expanded on large screens and collapse it on smaller screens.

What HTML element is typically used for the navbar toggle button?

A <button>

B <a>

C <div>

D <span>

A button element is used for the toggle because it is accessible and supports keyboard interaction.

Which attribute on the toggle button specifies the ID of the collapsible navbar content?

A href

B id

C data-bs-target

D aria-controls

The data-bs-target attribute points to the ID of the collapsible content to toggle it.

What role does the navbar-collapse class play in a Bootstrap navbar?

A It wraps the collapsible menu items that hide/show on toggle.

B It styles the toggle button.

C It defines the navbar brand.

D It creates the navbar container.

The navbar-collapse class is used on the div that contains the menu items that collapse or expand.

Which ARIA attribute indicates if the navbar toggle button is expanded or collapsed?

A aria-label

B aria-hidden

C aria-pressed

D aria-expanded

aria-expanded tells screen readers whether the toggle button controls an expanded or collapsed menu.

Explain how to create a responsive navbar that collapses on small screens using Bootstrap.

Think about the classes and attributes Bootstrap requires for toggle functionality.

Describe why responsive navbar collapse improves user experience on mobile devices.

Consider how navigation looks and works on phones versus desktops.