Tech Headline - CSS Naming Conventions: Improve your code with OOCSS, SMACSS, DRY and BEM
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CSS Coding Conventions CSS Naming Conventions Improve your code with OOCSS, SMACSS, DRY and BEM Rodrigo Castilho aka RODCAST Senior Front End Engineer @rodcast 07/10/2014
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CSS is a Mess CSS is easy? CSS is messy!
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Make a CSS better Make it simple, short and above all describe what you are seeing.
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HOW TO: Clean and Organize your CSS!
• Use a name that describes what you are styling
• Indents and Space (all lowercase)
• Avoid IDs selectors in CSS
• Minimize the depth of CSS selectors
• Use classes to define visual presentation patterns
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HOW TO: Clean and Organize your CSS!
• Use a name that describes what you are styling
• Indents and Space (all lowercase)
• Avoid IDs selectors in CSS
• Minimize the depth of CSS selectors
• Use classes to define visual presentation patterns
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HOW TO: Clean and Organize your CSS!
• Use a name that describes what you are styling
• Indents and Space (all lowercase)
• Avoid IDs selectors in CSS
• Minimize the depth of CSS selectors
• Use classes to define visual presentation patterns
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HOW TO: Clean and Organize your CSS!
• Use a name that describes what you are styling
• Indents and Space (all lowercase)
• Avoid IDs selectors in CSS
• Minimize the depth of CSS selectors
• Use classes to define visual presentation patterns
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HOW TO: Clean and Organize your CSS!
• Use a name that describes what you are styling
• Indents and Space (all lowercase)
• Avoid IDs selectors in CSS
• Minimize the depth of CSS selectors
• Use classes to define visual presentation patterns
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OOCSS Object Oriented CSS by Nicole Sullivan
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Why I should use OOCSS? OOCSS force you to think the website as a whole…
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Two main principles of OOCSS
• Separate Structure and Skin
• Separate Container and Content
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Two main principles of OOCSS
• Separate Structure and Skin
• Separate Container and Content
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SMACSS (pronounced “smacks”) Scalable and Modular Architecture for CSS by Jonathan Snook
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Are divided in categories
• Base
• Layout
• Module
• State
• Theme
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Are divided in categories
• Base
• Layout
• Module
• State
• Theme
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Are divided in categories
• Base
• Layout
• Module
• State
• Theme
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Are divided in categories
• Base
• Layout
• Module
• State
• Theme
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Are divided in categories
• Base
• Layout
• Module
• State
• Theme
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Naming Convention
module-submodule--modifier
module--modifier
module-submodule
module-submodule--modifier
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DRY CSS Don't Repeat Yourself by Jeremy Clarke
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Two important things
• Less Code
• Decouple your CSS
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Two important things
• Less Code
• Decouple your CSS
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BEM Block, Element, Modifier by guys Yandex
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Are divided in categories
• Block
• Element
• Modifier
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Are divided in categories
• Block
• Element
• Modifier
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Are divided in categories
• Block
• Element
• Modifier
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Naming Convention
block__element--modifier
block--modifier
block__element
block__element--modifier
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Organize CSS properties
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Declaration order
• by Alphabetical
• by Group
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Declaration order
• by Alphabetical
• by Group
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Summary
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The goals
Predictable, Reusable, Maintainable and Scalable.
Use best practices, make a simple and logic CSS with all experience and continue learning and when possible refactor your code.
The more you learn the better you are, but there is always more learning to be done and have in your mind, you can to change every time with maintenance. In other scenario, have a standard independent of your choice.
The less time you spend with your CSS, more time you have to improve your knowledge and your code.
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Don’t forget
Never stop refactoring your code,
otherwise you'll have to fix a lot of broken
windows sooner than you think.
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Reference list: Books
Scalable and Modular Architecture for CSS By Jonathan Snook
It’s available on: http://shop.smacss.com/
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Reference list: Links
http://oocss.org/
http://stubbornella.org/
http://smacss.com/
http://snook.ca/
http://bem.info/
http://csslint.net/
http://suitcss.github.io/
https://github.com/styleguide/css
https://github.com/csswizardry/CSS-Guidelines
https://github.com/work-club/CSS-Coding-Standards
http://www.vanseodesign.com/css/dry-principles/
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Homer Simpson WOOHOO!!! I hope I haven't forgotten anything.
Thank You.
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