Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
The Future of Reusable CSS
Search
Glen Maddern
September 01, 2016
Technology
2
210
The Future of Reusable CSS
Presented at Coldfront Conf 2016 <3
Glen Maddern
September 01, 2016
Tweet
Share
More Decks by Glen Maddern
See All by Glen Maddern
The Road to Styled Components & the Road Ahead
geelen
2
240
The Road to Styled Components
geelen
2
1.3k
Styled Components and the Road to Unification
geelen
2
280
CSS Modules, CSS Variables and the Future of Reusable CSS
geelen
9
1.3k
Other Decks in Technology
See All in Technology
Bliki (ja), and the Cathedral, and the Bazaar
koic
4
640
名刺メーカーDevグループ 紹介資料
sansan33
PRO
0
820
サイバーエージェントグループのSRE10年の歩みとAI時代の生存戦略
shotatsuge
4
1.2k
Data Engineering Study#30 LT資料
tetsuroito
1
380
ソフトウェアテストのAI活用_ver1.25
fumisuke
1
650
AWS Well-Architected から考えるオブザーバビリティの勘所 / Considering the Essentials of Observability from AWS Well-Architected
sms_tech
1
660
CDKコード品質UP!ナイスな自作コンストラクタを作るための便利インターフェース
harukasakihara
2
250
QAを早期に巻き込む”って どうやるの? モヤモヤから抜け出す実践知
moritamasami
2
130
安定した基盤システムのためのライブラリ選定
kakehashi
PRO
3
140
アクセスピークを制するオートスケール再設計: 障害を乗り越えKEDAで実現したリソース管理の最適化
myamashii
1
750
組織内、組織間の資産保護に必要なアイデンティティ基盤と関連技術の最新動向
fujie
0
410
Deep Security Conference 2025:生成AI時代のセキュリティ監視 /dsc2025-genai-secmon
mizutani
4
3.3k
Featured
See All Featured
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Statistics for Hackers
jakevdp
799
220k
Bash Introduction
62gerente
613
210k
Building Flexible Design Systems
yeseniaperezcruz
328
39k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
34
5.9k
Build The Right Thing And Hit Your Dates
maggiecrowley
37
2.8k
The Art of Programming - Codeland 2020
erikaheidi
54
13k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2.2k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
21
1.3k
Automating Front-end Workflow
addyosmani
1370
200k
What's in a price? How to price your products and services
michaelherold
246
12k
GraphQLとの向き合い方2022年版
quramy
49
14k
Transcript
Reusable CSS THE FUTURE OF @glenmaddern
HELLO copeNhagen! ♥
@glenmaddern
@glenmaddern "
@glenmaddern
@glenmaddern front end C E N T E R https://frontend.center
@glenmaddern
@glenmaddern 2015 WHAT MAKES CSS SO HARD TO MAINTAIN?
@glenmaddern demonic CSS
None
@glenmaddern ✅ COMPLICATED SELECTORS CSS ✅ OVERRIDE-HEAVY ✅ NO ISOLATION
✅ !IMPORTANT ✅ END OF FILE ONLY
@glenmaddern
@glenmaddern https:/ /github.com/css-modules/css-modules
@glenmaddern IDEAS TECHNIQUES ✏ TECHNOLOGY
@glenmaddern .selector > header > span {} .foo.bar.baz {} p
{} ❌ .single-really-long-classnames {} ✅
@glenmaddern ✏ .Block {} .Block__Element {} .Block__Element--modifier https:/ /bem.info
@glenmaddern .block {} .element {} .modifier {} https:/ /github.com/css-modules/css-modules
@glenmaddern
@glenmaddern
@glenmaddern 2016 WHAT MAKES CSS SO HARD TO REUSE?
@glenmaddern import something from 'somewhere' something.leftPad()
@glenmaddern THE HUMAN BRAIN IS A (IN)CONSISTENCY-DETECTING MACHINE
@glenmaddern http://semantic-ui.com
@glenmaddern http://semantic-ui.com
@glenmaddern http://semantic-ui.com
@glenmaddern http://www.novolume.co.uk/blog/all-websites-look-the-same/
@glenmaddern SETTINGS.SCSS
@glenmaddern https://en.wikipedia.org/wiki/Margaret_Hamilton_(scientist)
@glenmaddern http://semantic-ui.com
@glenmaddern IDEAS TECHNIQUES ✏ TECHNOLOGY
@glenmaddern css v ari able s
@glenmaddern CSS CUSTOM PROPERTIES CSS VARIABLES =
@glenmaddern http://caniuse.com/#feat=css-variables
@glenmaddern
@glenmaddern re sponsive component s
@glenmaddern DEATH TO PIXEL PERFECTION
@glenmaddern YOUR COMPONENTS SHOULD DEMAND LESS & RESPOND MORE
@glenmaddern A COMPONENT SHOULD RESPOND TO ITS ENVIRONMENT • •
RATHER THAN THE ENVIRONMENT OVERRIDING THE COMPONENT
@glenmaddern LAYOUT COMPONENTS ✏
@glenmaddern PADDING MARGIN SIZE
@glenmaddern .component { width: 50%; margin-top: 2rem; flex-grow: 1; }
❌
@glenmaddern .parent { display: flex; padding: 1rem; } .parent >
* { flex-grow: 1; } ONE ONE TWO ONE TWO THREE
@glenmaddern .parent { display: flex; padding: 1rem; } .parent >
* { flex-grow: 1; } .parent > * + * { margin-left: 1rem; } ONE ONE TWO ONE TWO THREE
@glenmaddern .parent { display: flex; padding: 1rem; } .parent >
* { flex-grow: 1; } .parent > * + * { margin-left: 1rem; } .parent > :first-child { flex: 0 0 50%; } ONE TWO ONE TWO THREE ONE TWO THREE FOUR
@glenmaddern CONTEXTUAL COMPONENTS ✏
@glenmaddern DEMO: CURRENTCOLOR
@glenmaddern https://www.youtube.com/watch?v=jPOBVaomzLE
@glenmaddern .component { --size: 2rem; width: calc(2 * var(--size)); height:
var(--size); } .component
@glenmaddern .component { --size: var(--spacing, 2rem); width: calc(2 * var(--size));
height: var(--size); } .component .container .component .container { --spacing: 1rem; }
@glenmaddern .component { --size: var(--spacing, 2rem); width: calc(2 * var(--size));
height: var(--size); } .component .component.large .large { --spacing: 4rem; /* or */ --size: 4rem; }
@glenmaddern .component { background: var(--bg, black); color: var(--fg, white); }
@glenmaddern .component { background: var(--bg, black); color: var(--fg, white); }
(bg, fg) => <Component style.../>
@glenmaddern DEMO: INVERTED BUTTON
@glenmaddern INHERITANCE THE CASCADE vs
@glenmaddern NAMING MISMATCHES?
@glenmaddern .container .container { --grid-size: 1rem; } .component .component .component
{ --size: var(--spacing, 2rem); width: calc(2 * var(--size)); height: var(--size); }
@glenmaddern .component .container .component.fix .container { --grid-size: 1rem; } .fix
{ --spacing: var(--grid-size); } .component { --size: var(--spacing, 2rem); width: calc(2 * var(--size)); height: var(--size); }
@glenmaddern EXPLICIT COMPONENTS ✏
@glenmaddern http://semantic-ui.com/elements/button.html
@glenmaddern http://jxnblk.com/rebass/#Button
@glenmaddern DEMO: DOCUMENTATION
@glenmaddern OPEN COMPONENTS ✏
@glenmaddern import styles from './MediaObject.css' const MediaObject = ({ title,
image, text }) => ( <div className={styles.outer}> <img className={styles.img} src={ image }/> <div className={styles.inner}> <h1 className={styles.h1}>{ title }</h1> <p className={styles.p}>{ text }</p> </div> </div> )
@glenmaddern import styles from './MediaObject.css' const MediaObject = ({ title,
image, text, theme=styles })=>( <div className={theme.outer}> <img className={theme.img} src={ image }/> <div className={theme.inner}> <h1 className={theme.h1}>{ title }</h1> <p className={theme.p}>{ text }</p> </div> </div> ) https://github.com/css-modules/css-modules/issues/147
@glenmaddern DEMO: INTERNAL STRUCTURE DOCS
@glenmaddern re sponsive component s
@glenmaddern ✏ KEEP LAYOUT SEPARATE ✏ RESPOND TO CONTEXT ✏
DOCUMENT ASSUMPTIONS ✏ OPEN FOR MODIFICATION
@glenmaddern t hank you! @glenmaddern