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Arjun Porwal
Arjun Porwal

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Sass Reference Sheet with NPM setup in boilerplate project

#css #npm #webdev #javascript

Sass

Today I am sharing this reference sheet that contains all the references to usage of Sass, also BEM & 7-1 architecture.

This also contains a boilerplate setup to get started on any Sass project with all the setup for it done already ! (Refer to the end of this sheet)

Markdown is available at my Github

Table of Contents

  • Variables for reusable values : Usage
    $pink: #ff1493;

  • Nesting to nest Selectors inside of one another for less code : Usage

  //scss
  .parent{
    .child{}
  }

  // becomes in css
  .parent .child{}
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  • Operators for mathematical operations in CSS : Usage
    font-size: (16px / 24px) // Uses parentheses, does division

  • Partials and Imports (@rules) to write code in different files and merge them : Usage
    @import "sample";

  • Mixins to write reusable piece of code : Usage

  @mixin overlay() {
    bottom: 0;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
  }

  .modal-background{
    @include overlay();
    background: black;
    opacity: 0.9;
  }
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  • Mixins & Placeholders : comparison

  • Functions are similar to mixins but produce a value : Usage

  @function remy($pxsize) {
      @return ($pxsize/16)+rem;
  }

  h1 { font-size: remy(32);}
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  • Extends to inherit same declaration in different selectors : Usage 
  // scss
  .small-uppercase{
    color: lightslategrey;
    font-size: 10px;
  }

  .modal-background{
    @extend .small-uppercase;
  }

  // generated css
  .small-uppercase,
  .modal-background{
    color: lightslategrey;
    font-size: 10px;
  }
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  • Control Directives to write complex code using conditionals and loops (, @content, @if) : Usage 
  @mixin test($condition) {
      $color: if($condition, blue, red);
      color:$color
  }
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BEM

  • BEM — Block Element Modifier is a methodology that helps you to create reusable components and code sharing in front-end development

  • Example :

  <form class="form form--theme-xmas">
    <input
      class="form__submit form__submit--disabled"
      type="submit" />
  </form>
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  .form { } //block
  .form--theme-xmas { } //block--modifier
  .form__submit { } //block__element
  .form__submit--disabled { } //block__element--modifier
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  /* classic + atomic prefix */
  .o-subscribe-form__field-item {}

  /* camelCase + atomic prefix */
  .o-subscribeForm__fieldItem {}
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7-1 Folder Architecture

  • Folder Structure in Practice : Reference
  • The 7–1 pattern is a common Sass architecture, and is recommended by the Sass Guidelines Project. Here’s the basic structure: 
  sass/
  |
  |– abstracts/             # HELPER FILES
  |   |– _variables.scss    # Sass Variables
  |   |– _mixins.scss       # Sass Mixins
  |
  |– vendors/               # THIRD-PARTY FILES
  |   |– _bootstrap.scss    # Bootstrap
  |
  |– base/                  # BOILERPLATE FILES
  |   |– _reset.scss        # Reset/normalize
  |   |– _typography.scss   # Typography rules
  |
  |– layout/                # STRUCTURE FILES
  |   |– _navigation.scss   # Navigation
  |   |– _grid.scss         # Grid system
  |   |– _header.scss       # Header
  |   |– _footer.scss       # Footer
  |   |– _sidebar.scss      # Sidebar
  |   |– _forms.scss        # Forms
  |
  |– components/            # SPECIFIC COMPONENTS FILES
  |   |– _buttons.scss      # Buttons
  |   |– _carousel.scss     # Carousel
  |   |– _cover.scss        # Cover
  |   |– _dropdown.scss     # Dropdown
  |
  |– pages/                 # PAGE SPECIFIC FILES
  |   |– _home.scss         # Home specific styles
  |   |– _contact.scss      # Contact specific styles
  |
  |– themes/                # MULTIPLE THEME FILES
  |   |– _theme.scss        # Default theme
  |   |– _admin.scss        # Admin theme
  |
   – main.scss              # Main Sass input file
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NPM Setup Boilerplate

  • I have made a complete NPM setup for sass development , that you can use as a boilerplate for your project, by just simply cloning it.
  • It contains :
    • Font-Awesome and Animate CSS is built in !
    • 7-1 Folder Architecture
    • Global Reset
    • Gitignore Included
    • Media Query Manager
    • JavaScript Babel Compilation
    • Development scripts : compile, serve and watch
    • Production scripts : compile, prefix and compress.
  • You can Find this Boilerplate in my Github Repo Boilerplate Image

Hope This Helps , Thank You !😊

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