A responsive web design (RWD) website is one that is designed to give an excellent browsing experience, reading and navigating with minimal resizing, panning, and scrolling—across a variety of devices, ranging from personal computers to mobile phones. A responsive web design website is also known as an adaptive web design website.

RWD is a design and development strategy that advocates that design and development should respond to user behaviour and environment based on screen size, platform, and orientation.

The three important parts of responsive web design are:

1. Flexible Layouts

A responsive web design website uses a fluid grid system that allows the layout of a page to adjust according to the size of the device’s screen. The fluid grid system is made up of a series of rows and columns that are used to create a page’s content.

2. Media Queries

Media queries are a CSS technique introduced in CSS3 that allows you to target different styles on different devices. Media queries are used to make a responsive web design website responsive to the width of the device’s screen. The most common media query used is the max-width media query, which allows you to target stylesheets at specific widths.

3. Flexible Images and Video

Responsive web design websites use responsive images and videos that scale to fit the size of the browser window. responsive images are images that are scaled to fit the width of the device’s screen. responsive videos are videos that are scaled to fit the width of the device’s screen.

Responsive web design websites use responsive images and videos to make sure that the content of a website is responsive to the width of the device’s screen.

Responsive web design websites are websites that have been designed to provide an optimal viewing experience across a wide range of devices. responsive web design websites use responsive web design techniques to achieve this.

The three important parts of responsive web design are flexible layouts, media queries, and flexible images and videos.  With that said, responsive web design is not just about making a website look good on a mobile phone. It’s about making sure that the website is easy to use and navigate on all devices.