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

Linking CSS breakpoints to JavaScript

Typically, with something web-based involving any sort of interaction, JavaScript will be involved. When you're developing a responsive project, it's feasible that you will want to do different things at different viewport sizes. Not just in CSS but also in JavaScript.

Let's suppose we want to invoke a certain JavaScript function when we reach a certain breakpoint in the CSS (remember that "breakpoint" is the term used to define the point in which a responsive design should change significantly). Let's suppose the breakpoint is 47.5rem (with a 16px root font size that would equate to 760px), and we only want to run the function at that size. There is a JavaScript API called matchMedia, which allows you to test in JavaScript, exactly the same as you would in CSS. The obvious solution would be to use that and create a comparable test as you have in your media query.

However, it would still mean two places to...