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
PostCSS and cssnext
Search
Masaaki Morishita
November 26, 2015
Programming
11
1.7k
PostCSS and cssnext
at html5j, 61th.
Masaaki Morishita
November 26, 2015
Tweet
Share
More Decks by Masaaki Morishita
See All by Masaaki Morishita
PostCSS: Build your own CSS processor
morishitter
6
4.5k
Houdini: Abracadabra CSS
morishitter
1
770
Modern CSS: architecture, future specs and build flow
morishitter
13
2.5k
PostCSS 5.0: for Custom CSS Preprocessing
morishitter
10
1.1k
PostCSS for beginners
morishitter
6
1.3k
CSSfmt
morishitter
2
200
Introduction to CSS Architecture
morishitter
3
330
Introduction to PostCSS
morishitter
6
1.6k
Yet Another CSS Preprocessor
morishitter
1
5.5k
Other Decks in Programming
See All in Programming
Делим тесты между QA и разработчиком
mariyasaygina
0
490
pytest プラグインを開発して DRY に自動テストを書こう
inuatsu
2
240
Removing Corepack
yosuke_furukawa
PRO
9
1.1k
DevFest Android in Korea 2024 - 안드로이드의 문단속 : 앱을 지키는 암호화 이야기
mdb1217
1
120
上手に付き合うコンポーネントテスト
quramy
3
1.2k
선언형 UI를 학습할 때 알아둬야하는 키워드들
l2hyunwoo
0
110
Quarto Clean Theme
nicetak
0
220
Assembling the Future: crafting the missing pieces of the Ruby on Wasm puzzle
skryukov
0
130
Taking LLMs out of the black box: A practical guide to human-in-the-loop distillation
inesmontani
PRO
3
1.1k
"Swarming" をコンセプトに掲げるアジャイルチームのベストプラクティス
boykush
2
190
2024-10-02 dev2next - Application Observability like you've never heard before
jonatan_ivanov
0
160
"noncopyable types" の使いどころについて考えてみた
andpad
0
130
Featured
See All Featured
A better future with KSS
kneath
235
17k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
38
2.1k
Raft: Consensus for Rubyists
vanstee
136
6.6k
Producing Creativity
orderedlist
PRO
341
39k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
327
21k
Java REST API Framework Comparison - PWX 2021
mraible
PRO
28
7.5k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
355
29k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
44
2k
VelocityConf: Rendering Performance Case Studies
addyosmani
324
23k
Automating Front-end Workflow
addyosmani
1365
200k
Fontdeck: Realign not Redesign
paulrobertlloyd
81
5.2k
The Language of Interfaces
destraynor
154
24k
Transcript
PostCSS'ͱ'cssnext @morishi(er_
About&me • Masaaki'Morishita • Twi.er:'@morishi.er_ • GitHub:'morishi.er • Blog:'h.p:/ /morishi.er/hatenablog.com
• αΠόʔΤʔδΣϯτʢ৽ଔ1ʣ • PostCSSΤόϯδΣϦετʢࣗশʣ
None
Blog
None
PostCSSͰ࡞ͬͨͷ • CSSfmt:((S)CSSίʔυܗπʔϧ • AtCSS:(Annota/ons(based(CSS(processor • postcss7style7guide:(ελΠϧΨΠυδΣωϨʔλʔ • ଞϓϥάΠϯ7ͭ
Agenda 1. PostCSSͱ 2. PostCSSͷྺ࢙ 3. PostCSSͷύϑΥʔϚϯε 4. PostCSSπʔϧ 5.
cssnext 6. ·ͱΊ
PostCSSͱ
Over%7000%!%on%GitHub
None
None
None
͍͕͋Δ!
PostCSS'ͱ • by$Andrey$Sitnik • Node.jsͷCSSύʔαʔ • ASTΛૢ࡞͢ΔศརAPIΛఏڙ • ASTͷૢ࡞શͯϓϥάΠϯ͕୲
PostCSSͷॲཧͷྲྀΕ
PostCSSͷྺ࢙
PostCSSͷΑ͏ͳπʔϧੲ͔Β͋ͬͨ…
rework Plugin'framework'for'CSS'preprocessing
Modular(CSS(preprocessing( with(rework h"p:/ /tjholowaychuk.tumblr.com/post/ 44267035203/modular=css=preprocessing=with= rework
Custom'CSS'preprocessing h"p:/ /nicolasgallagher.com/custom4css4 preprocessing/
rework&(in&2012) • AndreyreworkΛͬͯAutoprefixerΛ࡞ͬͨ • ͔࣌͠͠reworkϒϥβϋοΫΛύʔεͰ͖ͳ͔ͬͨ • ʢ͋ͱTJʹAutoprefixerΛdisΒΕͨΓ…ʣ • ʮΑ͠ɺࣗͰreworkͷΑ͏ͳͷ࡞Ζ͏ʂʯ
PostCSS'ੜ
PostCSSʢʙ'v1ʣ • "PostCSS)is)a)framework)for)CSS)postprocessors" • AutoprefixerͷͨΊʹ࡞ΒΕͨ • ͜ͷࠒCoffeeScriptͰॻ͔Εͯͨ • ࡞ऀRuby͖ͰSass͖
PostCSS'(v2'ʙ'v4) • ϓϥάΠϯ͕େྔʹ࡞ΒΕ͍ͯ͘ • ݴޠ֦ுͷͨΊͷϓϥάΠϯ࡞ΒΕ͍ͯ͘ • cssnext,)AtCSS,)PreCSS • ʮϙετϓϩηεͱ͍͍ͬͨ…ʯ
None
PostCSS'v5
PostCSS'v5 • ࠓ·ͰͰҰ൪େ͖͍มߋ • Custom'Syntaxes • CSSҎ֎ͷߏจΛύʔεͰ͖ΔΑ͏ʹͳͬͨ • (reworkશʹΦϫίϯʹ)
Custom'Syntaxes • postcss'scss • SCSS༻ͷύʔαʔ • postcss'js • JSΦϒδΣΫτͱͯ͠ఆٛͨ͠CSSͷύʔαʔ •
͍ΘΏΔCSS,in,JS༻
PostCSSͷύϑΥʔϚϯε
ϓϦϓϩηοαʔͱͯ͠ postcss&nested*+*postcss&simple&vars*+*postcss&calc*+*postcss&mixins
CSSύʔαʔͱͯ͠
ϕϯμʔϓϦϑΟοΫε༩πʔϧͱͯ͠ CompassΑΓ50ഒҎ্͍ ϕϯμʔϓϦϑΟοΫε༩ͷͨΊ͚ͩʹCompassΛ͍ͬͯΔ ͳΒૣࣺͯ͘Δ͖
PostCSS'is'Fast h"ps:/ /github.com/postcss/benchmark
PostCSSπʔϧ
ۀͰPostCSSπʔϧϓϥάΠϯΛ Έ߹Θ͍ͤͯͬͯ͘
Autoprefixer ʮCan$I$Useʯͱ͍͏αΠτͷσʔλΛࢀ র͍ͯ͠Δ input: .flex { display: flex; } output:
.flex { display: -webkit-box; display: -webkit-flex; display: -ms-flexbox; display: flex; }
stylelint ϞμϯͳCSSͷLintπʔϧ Custom'proper+escalc()ʹରԠ ESLintͷΑ͏ʹॊೈͳઃఆ͕Ͱ͖Δ
cssnano CSSͷminifyπʔϧ ͍͔ͭ͘ͷPostCSSͷϓϥάΠϯ͔ΒͰ͖ ͍ͯΔ
PreCSS PostCSSϓϦϓϩηοαʔ Sass$like$syntax • ηϨΫλʔͷωετදه • mixin • extend •
for,#each • if
CSS#Modules CSSͷελΠϧͷӨڹൣғΛίϯϙʔω ϯτͰด͡Α͏ͱ͢ΔࢼΈ • webpackͷcss*loaderΛͬͯηϨΫλ ΛBase64ͰΤϯίʔυ • composesͷػೳΛPostCSSΛͬͯ ࣮ CSS#Modules#ॴײ
h"p:/ /morishi"er.hatenablog.com/entry/ 2015/09/28/103334
CSSfmt CSSϑΥʔϚολʔ • ະདྷͷCSSͷه๏ɺSCSSه๏ʹରԠ • ϑΥʔϚοςΟϯάͷΦϓγϣϯ͕Ұ ͳ͍ h"ps:/ /github.com/morishi"er/cssfmt ϩΰืूதʂʂ
cssnext Use$tomorrow's$CSS$syntax,$ today. h"p:/ /cssnext.io/
cssnext
cssnext • by$Maxime$Thirouin • ݱࡏࡦఆஈ֊Ͱϒϥβ͕ະ࣮ͷCSSͷه๏Λɺࠓͷϒϥ β͕ղऍͰ͖ΔΑ͏ʹτϥϯεύΠϧ͢Δπʔϧ • PostCSS
cssnext ͍͔ͭ͘ͷPostCSSϓϥάΠϯ͔ΒͰ͖͍ͯΔ • Custom(proper,es • Custom(media(queries • Custom(selectors • color(),(hwb(),(gray()
• Autoprefixer • etc...
Custom'proper+es input: :root { --color: red; } div { color:
var(--color); } output: div { color: red; }
Custom'media'queries input: @custom-media --small-viewport (max-width: 30em); @media (--small-viewport) { /*
styles for small viewport */ } output: @media (max-width: 30em) { /* styles for small viewport */ } • ϝσΟΞΫΤϦʔͷmax%width:,30emͱ͔ʹ໊લΛ͚ͯཧ ͢Δ͜ͱ͕Ͱ͖·͢ɻ
Media&query&ranges input: @media screen and (width >= 500px) and (width
<= 1200px) { .foo { display: block; } } output: @media screen and (min-width: 500px) and (max-width: 1200px) { .bar { display: block; } }
Custom'selectors input: @custom-selector :--heading h1, h2, h3; article :--heading +
p { margin-top: 0; } output: article h1 + p, article h2 + p, article h3 + p { margin-top: 0; }
Color%func*on input: body { background: color(red a(90%)) } output: body
{ background: rgba(255, 0, 0, 0.9) }
cssnextΛ͏ͱ'ະདྷͷCSSͷγϯλοΫεΛ ઌऔΓͰ͖Δ
tabatkins(/(specs by#Tab#Atkins#Jr. h"ps:/ /github.com/tabatkins/specs
tabatkins(/(specs • CSS$Toggle$States • CSS$Nes.ng • CSS$Aliases$(custom$stuff) • CSS$will9change$Property •
CSS$Font$Rendering$Controls • etc...
CSS#@apply#Rule#(by#postcss2apply) :root { --toolbar-theme: { background-color: hsl(120, 70%, 95%); border-radius:
4px; border: 1px solid var(--theme-color late); }; --toolbar-title-theme: { color: green; }; } .toolbar { @apply --toolbar-theme; } .toolbar > .title { @apply --toolbar-title-theme; }
CSS#Extend#Rule#(by#postcss4extend) .error { color: red; border: thick dotted red; }
.serious-error { @extend .error; font-weight: bold; }
·ͱΊ
PostCSSͱ • PostCSSࣗମͨͩͷύʔαʔ • ύʔαʔͱͯ͠ͱͯྑ͍ • ASTͷૢ࡞શͯϓϥάΠϯ͕୲ • ·͋·͍͋ •
Stylusͷ4ഒ,/Ruby/Sassͷ26ഒ • Compassͷ50ഒҎ্
PostCSSπʔϧ • Autoprefixer • stylelint • cssnano • PreCSS •
CSS5Modules • CSSfmt
PostCSS.parts h"p:/ /postcss.parts
cssnext • ະདྷͷCSSΛઌऔΓʂ࠷ߴʂ • Custom)proper-es • Custom)media)queries • Custom)selectors •
color(),)hwb(),)gray() • etc...
※͔͜͜ΒݸਓͷײͰ͢
PostCSSʹ͍ͭͯ • ύʔαʔͱͯ͠ͱͯ༏ल • ͜Ε͔ΒCSSܥͷπʔϧΛ࡞Δͱ͖PostCSSΛ͏ • ඞཁͳػೳʢϓϥάΠϯʣ͚ͩΛબͯ͑͠Δ • ʮSassΛ͍ͬͯΔ͚Ͳ@extend@mixinΘͳ͍ʯ •
ʮมఆٛͱ@importͷΠϯϥΠϯల։͚ͩͰ͍͍Θʔʯ
ͨͩ…
PostCSSʹ͍ͭͯ • γϯλοΫεγϡΨʔܥͷϓϥάΠϯ͕ଟ͍ • ࠷ۙωλܥ૿͖͍͑ͯͯΔ • ϓϥάΠϯಉ࢜ʹґଘ͕ؔ͋Δ • ʮpostcss-mixinspostcss-nestedΑΓઌʹಡΈࠐΈ ·͠ΐ͏ʯ
ࡶʹPostCSSϓϥάΠϯΛͬͨΠϝʔδ
cssnextʹ͍ͭͯ • ະདྷͷCSSΛઌऔΓʂ$Ͱͳ͍ • CSSͷ༷ॻ͜Μͳʹബ͘ͳ͍ • cssnextͰମײͰ͖ΔͷγϯλοΫεͷॻ͖৺͙Β͍ • Extensible$Webͷจ຺ͰޠΒΕΔ͜ͱ͋Δ͕ɺPostCSSͰ Ͱ͖Δ͜ͱগͳ͍
cssnextʹ͍ͭͯ • cssnextϙϦϑΟϧ(Ͱͳ͍ • ػೳ͕࣮͞Ε͍ͯͳ͍ϒϥβͰ͑ΔΑ͏ʹ͢Δͷ ͡Όͳ͍ • ࠓͷϒϥβ͕ղऍͰ͖ΔCSSʹม͢Δ߹ɺͰ͖Δ͜ͱ গͳ͍ •
HoudiniͷCSS(Parser(APIʹظ
cssnextʹ͍ͭͯ • cssnextϓϦϓϩηοαʔ • ଞͷϓϦϓϩηοαʔͱಉ༷ʹɺग़ྗޙͷCSSΛҙࣝͯ͠ॻ ͘ඞཁ͕͋Δ • JSͷBabelײ֮Ͱ༻͢Δͱةݥ
Thanks':D @morishi(er_