Beginning CSS Preprocessors: With Sass, Compass, and Less by Anirudh Prabhu

By Anirudh Prabhu

Learn how preprocessors could make CSS scalable and straightforward to take care of. you will see easy methods to write code in a really fresh and scalable demeanour and use CSS preprocessor beneficial properties resembling variables and looping, that are lacking in CSS natively. studying Beginning CSS Preprocessors will make your existence a lot less complicated via displaying you the way to create reusable chunks of code. as well as coding improvements, you’ll additionally discover ways to automate approaches equivalent to producing picture sprites and minifying code.

Beginning CSS Preprocessors is your advisor for buying all started with CSS preprocessors. This e-book exhibits you ways to take advantage of CSS on your daily paintings and hence be clever and effective at writing CSS.

  • What are preprocessors
  • What are the recognized preprocessor frameworks
  • What are the gains of Sass (Syntactically extraordinary Stylesheets)
  • What is Compass (COMPrehensive ASSembler)
  • What is much less (Leaner SS)

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Beginning CSS Preprocessors: With Sass, Compass, and Less

Find out how preprocessors could make CSS scalable and straightforward to keep up. you will see tips to write code in a really fresh and scalable demeanour and use CSS preprocessor gains akin to variables and looping, that are lacking in CSS natively. examining starting CSS Preprocessors will make your existence a lot easier through displaying you the way to create reusable chunks of code.

Additional resources for Beginning CSS Preprocessors: With Sass, Compass, and Less

Example text

Normally, a developer building a web page would first write "normal" styles and then write media queries at the end. This would work fine for stylesheets with few lines of code; however, it will be nightmare to manage when the code increases to thousands of lines. Sass provides something much easier. @media is used to write media queries similar to CSS. However, it has an added feature that it can be nested within a style rule. Sass will automatically build a media queries declaration and put respective styles inside it, as shown in Listing 3-6.

In this example, you are using two variables as one element in a loop. A pair of $notification and $color is treated as a single loop entity and it’s evaluated and the styles are generated accordingly. Listing 2-55. #{$notification}-icon { background-color: $color; } } 33 Chapter 2 ■ Introduction to Sass Listing 2-56. error-icon { background-color: red; } @while The @while directive iterates until the condition given is not met and outputs the styles nested inside the body of the while loop. Listing 2-57 shows an example that builds the column layout for a responsive design.

Listing 2-9. io/scout-app/. Open the app and click the plus icon at the bottom-left corner to add a project. Figure 2-2 shows the UI of the Scout app. Figure 2-2. Scout app interface; to get started, you need to click on the bottom-left plus icon 17 Chapter 2 ■ Introduction to Sass After you click the plus icon, you will see the interface shown in Figure 2-3. Figure 2-3. Adding a project to Scout As you can see, there are various parameters that you can configure, including stylesheet directories, JavaScript, and images directories.

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