smacss your sass up
TRANSCRIPT
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smacss your up
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@minamarkham
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“I need two demo sites”“And I need them
in two days”
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CSS is easy.
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CSS is easy.hard
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CSS is bullshit.
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Modular CSS
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Focusing on creating healthy front-end modules instead of complete pages can help break complex page layouts into reusable solutions.”
“
- Dave Rupert
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small pieces independent
portable
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Navigation, Tabs, Tables, Accordions, Lists, Dropdowns Pagination, Buttons, Labels, Inputs, Breadcrumbs, etc.
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“Tiny Bootstraps”
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Module, Pattern, Component, etc.
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MVCSS, BEM, OOCSS, Suit,
intuit.css
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SMACSS
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Scalable & Modular Architecture for CSS
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Framework
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categorization naming conventions depth of applicability
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Categorization
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base layout
modules states
themes
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Base CSS resets, default styles
(ex. html, body, h1, ul, etc)
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Layout grid, major components
ex. header, sidebar, nav
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content
footer
header
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sidebar
header
main content
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Modules content patterns
(ex. search-box, navigation, content-box)
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promo promo promo promo
hero
footer-text
navigation
link-list
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States module in various states
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Themes module in various contexts
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Naming Conventions
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Base h1, h2, p, a, etc.
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Layout .layout-*, .l-*
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Module .<name>
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Module .button
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Sub-module .<name>-<state>
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Sub-module .button-secondary
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State .is-*
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Theme .theme-*
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Theme .theme-*
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Depth of Applicability
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header#top-menu > nav > ul > li a + div > ul > li > ul li:hover > a {…}
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10 generations!
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header#top-menu > nav > ul > li a + div > ul > li > ul li:hover > a {…}
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header#top-menu > nav > ul > li a + div > ul > li > ul li:hover > a {…}
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.nav-subitem
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.nav-subitem > a
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child selectors class selectors
naming conventions
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Recap
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categorize css rules meaningful names shallow selectors
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add some
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not SASS
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Namespacing
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the almighty ampersand
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.btn { &:hover {…} }
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.btn:hover {…}
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.btn { form & {…} }
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form .btn {…}
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&- or &_
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.btn { &-secondary {…} &_secondary {…} }
.btn
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.btn-secondary {…}
.btn_secondary {…}
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nesting
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inception rule
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< 3 levels deep
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.btn { &-secondary { &-icon {…} } }
secondary.btn
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.btn-secondary {…}
.btn-secondary-icon {…}
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.btn {…}
.btn-large {…} !
<div class=“btn btn-large”>
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@extend all the things!
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.btn {…}
.btn-large {@extend .btn;} !
<div class=“btn-large”>
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%btn {…} .btn-large {@extend %btn;} !
<div class=“btn-large”>
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don’t @extend between modules
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File Structure
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@import
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01. Utilities
@import 'global'; @import 'functions'; @import 'mixins'; @import 'helpers';
utilities/_index.scss
Variables, mixins, functions, etc. Basically anything that doesn’t output CSS by itself.
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@import "lib/susy"; @import "lib/font-‐awesome"; @import "lib/pesticide";
utilities/_lib.scss
Third-party libraries such as Susy, Font Awesome, Pesticide, and other plugins.
01. Utilities 02. Libraries
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@import ‘normalize'; @import 'base';
base/_index.scss
CSS resets, Normalize, element styles
01. Utilities 02. Libraries 03. Base
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@import 'global'; @import 'functions'; @import 'mixins'; @import 'helpers';
layout/_index.scss
Grid styles, major layout components (e.g. header, footer, sidebar, etc)
01. Utilities 02. Libraries 03. Base 04. Layout
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@import 'btn'; @import 'table'; @import 'nav';
modules/_index.scss
Individual modules, such as buttons, navigation, menus, etc.
01. Utilities 02. Libraries 03. Base 04. Layout 05. Modules
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@import 'states'; @import 'touch';
states/_index.scss
Describe states of being, ex: active, collapsed or hidden
01. Utilities 02. Libraries 03. Base 04. Layout 05. Modules 06. States
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utilities/_fonts.scss Web fonts imports & declarations
01. Utilities 02. Libraries 03. Base 04. Layout 05. Modules 06. States 07. @font-‐face
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states/_print.scss Print styles
01. Utilities 02. Libraries 03. Base 04. Layout 05. Modules 06. States 07. @font-‐face 08. Print
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!important
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shame.css
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_shame.scss
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01. Utilities 02. Libraries 03. Base 04. Layout 05. Modules 06. States 07. @font-‐face 08. Print 09. Shame
_shame.scss because hacks happen
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small and readable
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mina.so/sassyStarter
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Theming
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@mixin theme($name) { @if $theme == $name { @content; } }
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$theme: rebeccapurple
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@include theme($rebeccapurple)
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refactor all the things!
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refactor all the things?
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Baby steps
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extract components create variables
apply naming conventions nest and @extend
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mina.so/smacss-menu
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Before: 161 lines After: 97 lines
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Recap
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namespace with ampersands & @extends
break modules into partials refactor in chunks
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Resources