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Perfect Styling - How to write better CSS
The document provides guidelines for writing better CSS, emphasizing principles like reusability, modularity, and consistency. It discusses various styling methodologies such as OOCSS, ACSS, BEM, and SMACSS, along with naming conventions and common pitfalls to avoid. Key rules include avoiding deep nesting, IDs, type selectors, and the use of !important, while promoting compact and ordered styles.
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Perfect Styling - How to write better CSS
- 1. Perfect Styling! How towrite better CSS! ARTEM TABALIN!
- 2.
- 3. Common Styling Issues! Scopedwith page id ! Mixed layout and component styling! Coupled with markup! Deeply nested!
- 4. Styling Methodologies ! • OOCSS! Object-Oriented CSS! • ACSS! Atomic CSS! • BEM! Block Element Modifier! • SMACSS! Scalable and Modular Architecture for CSS!
- 5. Object-Oriented CSS! • Separatestructure and skin! ! ! ! ! • Separate container and content!
- 6. Atomic CSS! ! • Eachclass represents a single styling unit!
- 7.
- 8. SMACSS! • Base! html, body,a, a:hover! • Layout! #header, #footer, .l-fixed #header, .l-fixed #footer! • Module! .form, .form-field, .form-field-label, .form-field-control! • State! .is-collapsed, .is-active, .is-hidden! • Theme! .theme-border, .theme-background!
- 9. Guidelines! Componentize. Naming rules.! Don’ts rules. Keep it rules. !
- 10. Componentize! Separate content fromcontainer! .search-box .menu .article
- 11. Naming Rules! Components. Modifiers.States. JS-related classes.!
- 12. Components! Follow the pattern.component-subcmp-subcmp!
- 13. Modifiers! Prefix modifier classeswith .mod-! !
- 14. States! Prefix state classeswith .is-! !
- 15. JS-related Classes! Prefix behaviorclasses with .js-! • No styles for behavior classes! • No presentation classes in JS!
- 16. Don’ts Rules! Avoid deepnesting. Avoid IDs. ! Avoid type selectors. Avoid !important.!
- 17. Avoid Deep Nesting! Avoidunnecessary rules nesting! • Harder to reuse • More verbose ! Hard to override!
- 18. Avoid IDs! Avoid usingID selector! • Harder to reuse • Can use only one on the page ! Single #navbar on the page Have to use ID to override
- 19. Avoid Type Selectors! Avoidusing HTML type selector! • Couples CSS and HTML • Redundant overqualified selectors ! What if decided to use <li> Lowers performance and compactness
- 20. Avoid using !important! • Harder to override • Accessibility software issues ! Avoid !important! Requires style with !important to override Can be used for utility classes
- 21. Keep It Rules! Keepit compact. Keep it ordered.! !
- 22. Don’t put redundantrules or chars! • Framework over custom • Use shorthands • Don’t specify units for 0 • Don’t put leading zeros ! Keep It Compact !
- 23. Put rules inthe particular order! 1. mixins! .mixin(param)! 2. positioning! position, z-index, top, right, bottom, left! 3. box-model! display, overflow, width, height, padding, border, margin! 4. color! background, color! 5. text! font, line-height, text-align, text-decoration, text-transform! 6. other! Keep It Ordered!
- 24. • Separate contentand container! • Dasherize class names! • Use special prefixes! • .mod- for modifiers! • .is- for states! • .js- for js-related classes! • Avoid deep nesting, ids, type selectors, !important! • Don’t use redundant rules and chars! • Put rules in the particular order! Wrapping Up!
- 25. Thank you!! Your questions,please!! ARTEM TABALIN!