Book Image

Responsive Web Design with HTML5 and CSS - Third Edition

By : Ben Frain
Book Image

Responsive Web Design with HTML5 and CSS - Third Edition

By: Ben Frain

Overview of this book

Responsive Web Design with HTML5 and CSS, Third Edition is a renewed and extended version of one of the most comprehensive and bestselling books on the latest HTML5 and CSS tools and techniques for responsive web design. Written in the author's signature friendly and informal style, this edition covers all the newest developments and improvements in responsive web design including better user accessibility, variable fonts and font loading, CSS Scroll Snap, and much, much more. With a new chapter dedicated to CSS Grid, you will understand how it differs from the Flexbox layout mechanism and when you should use one over the other. Furthermore, you will acquire practical knowledge of SVG, writing accessible HTML markup, creating stunning aesthetics and effects with CSS, applying transitions, transformations, and animations, integrating media queries, and more. The book concludes by exploring some exclusive tips and approaches for front-end development from the author. By the end of this book, you will not only have a comprehensive understanding of responsive web design and what is possible with the latest HTML5 and CSS, but also the knowledge of how to best implement each technique.
Table of Contents (14 chapters)
12
Other Books You May Enjoy
13
Index

CSS color formats and alpha transparency

When we start using CSS, we typically start by defining color as a hex value. However, CSS provides more powerful ways to declare color. We are going to explore another two: RGB and HSL. In addition, these two formats enable us to use an alpha channel alongside them (RGBA and HSLA, respectively). For the remainder of this chapter, we'll take a look at how these work.

RGB color

RGB (red, green, and blue) is a coloring system that's been around for decades. It works by defining different values for the red, green, and blue components of a color. For example, a red color might be defined in CSS as a hex (hexadecimal) value, #fe0208:

.redness {
    color: #fe0208;
}

For a great post describing how to understand hex values more intuitively, I can recommend this blog post at Smashing Magazine: http://www.smashingmagazine.com/2012/10/04/the-code-side-of-color/.

However, with CSS, that color can equally be described...