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Sass and Compass for Designers

By : Ben Frain

4.6 (35)

Sass and Compass for Designers

4.6 (35)

By: Ben Frain

Overview of this book

A step-by-step tutorial guide, taking you through how to build a responsive Sass and Compass powered website. If you understand HTML and CSS, this book is all you need to take your code to the next level with Sass and Compass. No prior understanding of CSS preprocessors or programming conventions is needed.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Getting Started with Sass and Compass

1. Getting Started with Sass and Compass

Why do we need CSS preprocessors?

Why you should use Sass and Compass

What is Sass?

What is Compass?

Install Sass and Compass

Installing and working with Sass and Compass on the command line

Graphical tools for working with Sass and Compass

How to work with Sass files in text editors

Summary

2. Setting Up a Sass and Compass project

2. Setting Up a Sass and Compass project

Setting up a Sass and Compass project

Understanding the config.rb file

Creating and using partial files

Sass comment formats

A basic index.html file

A base for future projects

Summary

3. Nesting, Extend, Placeholders, and Mixins

3. Nesting, Extend, Placeholders, and Mixins

Styling a site with Sass and Compass

Separating layout from visuals

What nesting is and how it facilitates modules of code

Using the @extend directive to extend existing rules

Use placeholder selectors to extend styles only when needed

What mixins are and how we can use them to easily produce oft-needed code

A cautionary note about generated CSS

Summary

4. Manipulate Color with Ease

4. Manipulate Color with Ease

Only define a color once

The lighten and darken functions

Markup amendments and diversions

Back to colors

The complement (and invert) functions

The invert function

The adjust-hue function

The saturate and desaturate functions

The transparentize/fade-out functions

The opacify/fade-in functions

The grayscale function

The rgba function

The mix function

The adjust-color function

The scale-color function

The shade and tint functions

Putting it all together

Summary

5. Responsive and Flexible Grids with Sass and Compass

5. Responsive and Flexible Grids with Sass and Compass

Arguments against grids

Reasons to use a grid system

What is Susy?

Installing the Susy Compass plugin

Including Susy in a project

Setting up a Susy grid

Defining a context for the grid

Making a ‘mobile first’ responsive grid

Making breakpoints with Susy

Creating an entirely fluid grid

Creating a static ‘fixed’ grid

Using Susy grid helpers

Pre, Post, Squish, Push, and Pull

Grids within grids

Sub-pixel rounding issues

Summary

6. Advanced Media Queries with Sass and Mixins

6. Advanced Media Queries with Sass and Mixins

Media queries in Sass

Inline media queries with Sass

Creating a mixin to easily handle media queries

How the MQ media query mixin works

Variations on a theme

Writing inline media queries

Gzip and CSS compression = victory!

Testing the real-world difference between inline and grouped media queries

Reviewing CSS code

Summary

7. Easy CSS3, Image Sprites, and More with Compass

7. Easy CSS3, Image Sprites, and More with Compass

Easy CSS3 with Compass's mixins

The border-radius syntax

Multiple columns

Background gradients

Adding background images with the Compass image-url helper

Image width and height helpers

Compass image sprites

Compass's text replacement mixins

Creating data URIs from images

Easy fallbacks for non-SVG capable devices

CSS transforms

CSS Filters

Transitions

Summary

8. Programmatic Logic with Sass

8. Programmatic Logic with Sass

Math calculations with Sass

Control directives and how to use them

Stripping and adding units to values

Writing functions in Sass

Using the @debug directive

The @warn directive

Summary

9. Becoming a Sass and Compass Power User

9. Becoming a Sass and Compass Power User

Turning off Compass support for specific vendors

Adding experimental support for bleeding edge CSS features

Defining experimental values

The Sass interactive shell

Adding the Sass globbing plugin to import batches of partial files

Creating multiple separate style sheets

Converting partial files to standalone style sheets

Compass statistics

Clearing the Sass cache

One-off Compass compiles

Mission debrief

Avoid conjecture with tools and testing

Parting shots

Summary

Index

Index

Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Semantic purists argue that writing markup laden with HTML classes such as column_8 and column_4 is tantamount to a cardinal sin."

A block of code is set as follows:

* {
  @include bs;
}
[class^="inner"] {
  max-width: 75em;
  margin: auto;
}
header[role="banner"],footer[role="contentinfo"] {
  width: 100%;
  display: block;
}
nav[role="navigation"] {
  width: 25%;
  float: left;
}
.main-content {
  width: 70%;
  float: right;
}
footer[role="contentinfo"] {
  clear: both;
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

.buy-amazon-uk {
  @extend %block;
  background-image: image-url("amazon-co-uk.png");
  background-size: image-width("amazon-co-uk.png") image-height("amazon-co-uk.png");
  background-position: 50% 50%;
  background-repeat: no-repeat;
  height: image-height("amazon-co-uk.png");
  width: image-width("amazon-co-uk.png");
}

Any command-line input or output is written as follows:

gem install susy

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "The preceding example will produce an error Cannot specify HSL and RGB values for a color at the same time for 'adjust-color'".

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.

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