Summary  
This chapter explains how to implement responsive navigation components using Bootstrap’s predefined CSS classes and data attributes, covering both navbars and navs. It details the use of classes like navbar, navbar-brand, navbar-nav, nav-item, nav-tabs, and nav-pills along with toggler buttons and collapse functionality to create mobile-friendly menus.

General domain of usage  
Web user interface development

# Navbars
Navbars are responsive navigation headers commonly used to provide site navigation links, branding, and other interactive elements.

## Key Features
Navbars are designed to be responsive and will automatically collapse into **a mobile-friendly menu** when viewed on smaller screens. They are capable of supporting various types of content, including navigation links, brand logos, search bars, dropdown menus, and buttons.

## Usage
- Start by incorporating the `navbar` class to establish the basic structure of your navbar;
- Enhance your navbar by adding specific elements such as `navbar-brand` for branding, `navbar-nav` for navigation links, `navbar-toggler` for the responsive toggle button, and `collapse` for collapsible content;
- Personalize the appearance of your navbar further by applying additional classes like `bg-dark` to set the background color.

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# Navs
Navs are versatile navigation components that can be used for various navigation purposes, such as tabbed navigation, pill navigation, or vertical navigation.

## Key Features
Navs can be utilized for both **horizontal and vertical navigation layouts** and support various styles, such as tabs, pills, and justified navigation. 

## Usage
- Start by incorporating the `nav` class to create a basic nav structure;
- Populate your nav with navigation items using `<a>` or `<button>` elements, each with the `nav-item` class;
- Further enhance the appearance and functionality of your nav by applying additional classes such as `nav-tabs` for tab navigation or `nav-pills` for pill navigation.

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Building Navigation Menus with Bootstrap

Navbars

Key Features

Usage

Navs

Key Features

Usage

Awesome!

Building Navigation Menus with Bootstrap

Navbars

Key Features

Usage

Navs

Key Features

Usage