Discover how to build Progressive Web Apps with offline support, push notifications, responsive design, and native-like experiences. Gain insights into service workers, caching strategies, and app optimization.

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Web development is challenging, but progressive web applications provide a significant advantage over traditional web applications by enabling capabilities such as installation to the device, offline access, and push notifications.

You’ll start by learning about PWAs and understanding the core tenets of a PWA. Next, you’ll learn to implement features like offline support, intercepting network requests, and app installation banners using service worker APIs. You’ll then progress to caching strategies for improved performance, IndexedDB for storing data locally, and background syncing for unstable networks. Finally, you’ll cover responsive web design and native-device APIs to make your PWA feel and look like a native app.

After completing this course, you can build progressive apps with engaging and responsive experiences. You’ll also be prepared to optimize your existing web apps as PWAs, extending their reach and improving performance.

Building Progressive Web Applications

# Introduction

A **CSS media query** is a powerful tool that allows developers to customize the appearance and layout of a website based on the characteristics of the device it's being viewed on. Using media queries, we can create a more responsive and dynamic user experience that adapts to different screen sizes, resolutions, and device types.

# Why use media queries?

Here are some compelling reasons to use CSS media queries in web design projects:

- **Adapt to different screen sizes**: As more and more devices with varying screen sizes and resolutions are being used, creating a design that looks good and is functional across a wide range of devices is important. Media queries allow customizing the layout and styling of a website based on the screen size of the device it's being viewed on.

- **Improve the user experience**: Optimizing the design for different devices can create a more seamless user experience. For example, we can hide certain elements on smaller screens or change the font size to make it more readable on mobile devices.

- **Increase accessibility**: Media queries can also be used to improve the accessibility of a website by customizing the design for users with different visual or cognitive impairments.


Get a brief introduction to CSS media queries, including their importance and usage.

Introduction

Understanding the App Manifest

The Service Workers

Caching Using Service Workers

Cache Strategies

Offline Image Viewer

IndexedDB

Note-Taking App

Creating App-Like UI and UX

Offline Experience with Background Sync API

Web Push Notifications (Notification API, Push API)

Native Device Features

The Photo-Sharing App

Wrapping Up

CSS Media Queries

Introduction

Why use media queries?