Book Image

Sass and Compass Designer's Cookbook

By : Bass Jobsen, Stuart Robson
Book Image

Sass and Compass Designer's Cookbook

By: Bass Jobsen, Stuart Robson

Overview of this book

Sass and Compass Designer's Cookbook helps you to get most out of CSS3 and harness its benefits to create engaging and receptive applications. This book will help you develop faster and reduce the maintenance time for your web development projects by using Sass and Compass. You will learn how to use with CSS frameworks such as Bootstrap and Foundation and understand how to use other libraries of pre-built mixins. You will also learn setting up a development environment with Gulp. This book guides you through all the concepts and gives you practical examples for full understanding.
Table of Contents (23 chapters)
Sass and Compass Designer's Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating pure Sass functions


Since Sass version 3.3.1., you can not only use the @mixin directive, but also the @function directive. Pure Sass functions created with the @function directive do not generate output in the compiled CSS code, but return a single value. In this recipe, you will create a Sass function that converts value in px (pixel) units to values in em units.

Getting ready

Read the Installing Sass for command line usage recipe of Chapter 1, Getting Started with Sass, and install Ruby Sass on your system. In the Using Sass interactive mode and SassScript recipe of Chapter 1, Getting Started with Sass, you can read how to use the interactive Sass mode. Operations with units, as used in this recipe, can easily be tested in the interactive Sass mode.

How to do it...

Perform the steps below to build a pure Sass function yourself:

  1. Create a Sass template that contains an em function, which looks as follows:

     $browser-context: 16; 
    
    @function px_to_em($pixels, $context: $browser-context...