Book Image

Mastering Responsive Web Design

By : Ricardo Zea
Book Image

Mastering Responsive Web Design

By: Ricardo Zea

Overview of this book

Building powerful and accessible websites and apps using HTML5 and CSS3 is a must if we want to create memorable experiences for our users. In the ever-changing world of web design and development, being proficient in responsive web design is no longer an option: it is mandatory. Each chapter will take you one step closer to becoming an expert in RWD. Right from the start your skills will be pushed as we introduce you to the power of Sass, the CSS preprocessor, to increase the speed of writing repetitive CSS tasks. We’ll then use simple but meaningful HTML examples, and add ARIA roles to increase accessibility. We’ll also cover when desktop-first or mobile-first approaches are ideal, and strategies to implement a mobile-first approach in your HTML builds. After this we will learn how to use an easily scalable CSS grid or, if you prefer, how to use Flexbox instead. We also cover how to implement images and video in both responsive and responsible ways. Finally, we build a solid and elegant typographic scale, and make sure your messages and communications display correctly with responsive emails.
Table of Contents (16 chapters)
Mastering Responsive Web Design
About the Author
About the Reviewers

Retrofitting with RWD

We just saw how using AWD is accomplished, using pixels. With RWD and a very simple equation, we can retrofit a site using relative units, in our case percentages. Not to mention it will be a lot easier than using AWD.

The RWD magic formula

Discovered/created by Ethan Marcotte, who coined the term Responsive Web Design, the RWD magic formula is a very simple equation:

(target ÷ context) x 100 = result %

Before we start turning pixels into percentages, we need to see which width our context is going to be.

The main container

Our context is going to be the main container of the page .container_12, which has a maximum width of 980px. However, there's a catch involving the main container and the columns that will turn this 980px context into 960px. Notice the 10px left-right padding on the .container_12 section and the 10px left-right margin in the .grid rules:

.container_12 {
    width: 980px;
    padding: 0 10px;
    margin: auto; 
.grid {
    &_1, &_2, &_3, &amp...