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
ブラウザのデフォルトスタイルを見てみよう
Search
Kite
January 29, 2017
Programming
3
1.5k
ブラウザのデフォルトスタイルを見てみよう
ユーザエージェントスタイルシートを読むことで、コードの無駄を減らし、未来の新機能に備えよう!
Kite
January 29, 2017
Tweet
Share
More Decks by Kite
See All by Kite
個人からチームまで、情報・タスク管理の一元化はNotionにお任せ!
ixkaito
12
73k
WordPress でも大丈夫!実例で見るウェブパフォーマンス改善
ixkaito
7
5.1k
WordPress でも大丈夫!実例で見るウェブパフォーマンス改善
ixkaito
22
7.7k
タイポグラフィベーシック (+ デザインアイデア)
ixkaito
13
3.9k
WordPress の今とこれから
ixkaito
1
1.8k
世界で一人しかできない WordPress コアを写経する話 ― 修行の先に見たものとは?
ixkaito
5
14k
WordPress の今とこれから
ixkaito
4
2.6k
Let's Think about Right Answers of Design and UI/UX
ixkaito
0
380
What's New in Twenty Seventeen
ixkaito
3
7.4k
Other Decks in Programming
See All in Programming
OpenTelemetryで始めるベンダーフリーなobservability / Vendor-free observability starting with OpenTelemetry
seike460
PRO
0
160
少数精鋭エンジニアがフルスタック力を磨く理由 -そしてAI時代へ-
rebase_engineering
0
130
複雑なフォームを継続的に開発していくための技術選定・設計・実装 #tskaigi / #tskaigi2025
izumin5210
12
6.3k
衛星の軌道をWeb地図上に表示する
sankichi92
0
250
コードに語らせよう――自己ドキュメント化が内包する楽しさについて / Let the Code Speak
nrslib
5
980
REST API設計の実践 – ベストプラクティスとその落とし穴
kentaroutakeda
2
310
マテリアルって何者?RealityKitで扱うマテリアル入門
nao_randd
0
140
Language Server と喋ろう – TSKaigi 2025
pizzacat83
2
660
PT AI без купюр
v0lka
0
190
「兵法」から見る質とスピード
ickx
0
170
JSAI2025 RecSysChallenge2024 優勝報告
unonao
1
370
Feature Flag 自動お掃除のための TypeScript プログラム変換
azrsh
PRO
4
620
Featured
See All Featured
Building Adaptive Systems
keathley
41
2.6k
The Language of Interfaces
destraynor
158
25k
Making Projects Easy
brettharned
116
6.2k
Six Lessons from altMBA
skipperchong
28
3.8k
Unsuck your backbone
ammeep
671
58k
Statistics for Hackers
jakevdp
799
220k
The Straight Up "How To Draw Better" Workshop
denniskardys
233
140k
Documentation Writing (for coders)
carmenintech
71
4.8k
Rebuilding a faster, lazier Slack
samanthasiow
81
9k
Automating Front-end Workflow
addyosmani
1370
200k
Designing for humans not robots
tammielis
253
25k
Faster Mobile Websites
deanohume
307
31k
Transcript
ϒϥβͷσϑΥϧτελΠϧΛݟͯΈΑ͏ USER AGENT STYLESHEETS
WordPress core contributor Kite KITERETZ inc. CEO & Founder kite.koga
ixkaito ixkaito Web & graphic designer Programmer Ruby on Rails contributor React contributor Wocker developer Bathe developer Frasco developer
มଶత$44τϦοΫ $44ͱ͍͑ ͠XFCۀքͷྲྀߦޠେ͕͋ͬͨΒɺ͖ͬͱʮมଶత$44ʯɺ ͘͠ʮมଶతʓʓʯ͕ड͍ͯ͠ΔͩΖ͏ ˘Т˘
0 1 2 3 4 5 6 ͖͔͚ͬ ϨϯμϦϯάΤϯδϯ MBZPVUFOHJOF
6"ελΠϧγʔτͲ͜Ͱ֬ೝͰ͖Δͷ͔ ֤ϒϥβͷελΠϧ͕࣮ڞ௨͍ͯ͠Δʁ ཧతͳϓϩύςΟͱ ΞτϥΠϯɾΞϧΰϦζϜ ·ͱΊ CONTENTS
͖͔͚ͬ 6OSFTFU$44Λ࡞Δʹ͋ͨͬͯɺ ֤ϒϥβͷσϑΥϧτελΠϧʹ͍ͭͯௐ·ͨ͠ɻ IUUQTHJUIVCDPNJYLBJUPVOSFTFUDTT 0
ϨϯμϦϯάΤϯδϯLAYOUT ENGINE ϒϥβͷσϑΥϧτελΠϧɺϢʔβΤʔδΣϯτ 6" ελΠϧγʔ τͱݺΕ͓ͯΓɺجຊతʹϨϯμϦϯάΤϯδϯʹґଘ͠·͢ɻ ֤ϒϥβͲͷϨϯμϦϯάΤϯδϯΛ࠾༻͍ͯ͠ΔͰ͠ΐ͏͔ʁ 1
Firefox Gecko Chromium/Chrome 28 Ҏ্, Opera 15 Blink Safari, Chrome
27 ҎԼ, Opera 14 Webkit Opera 7-12 Presto Internet Explorer Trident Edge EdgeHTML
2֤ϒϥβ ϨϯμϦϯάΤϯδϯ ͷ σϑΥϧτελΠϧγʔτ Ͳ͜Ͱ֬ೝͰ͖Δͷ͔ʁ
Gecko (Firefox) https://dxr.mozilla.org/mozilla-central/source/layout/style/res/html.css Blink (Chromium/Chrome 28+, Opera 15+) https://chromium.googlesource.com/chromium/blink/+/master/Source/core/css/html.css Webkit
(Safari, Chrome before 28, Opera 14) http://trac.webkit.org/browser/trunk/Source/WebCore/css/html.css Presto (Opera 7 to 12) http://www.iecss.com/opera-10.51.css Trident (Internet Explorer) http://www.iecss.com/ie-9.css Edge (EdgeHTML) http://www.iecss.com/edgehtml-13.10586.css 6OSFTFU$44ͷ3&"%.&ʹৄࡉ͕ه ࡌ͞Ε͍ͯ·͢ɻ͞Βʹɺ֤$44ϑΝΠ ϧ͕ϑΥϧμʹ·ͱΊΒΕ͍ͯ·͢ɻ
3 ֤ϒϥβͷελΠϧ͕࣮ ڞ௨͍ͯ͠Δʁ
h1 h1 { display: block; font-size: 2em; font-weight: bold; margin-block-start:
.67em; margin-block-end: .67em; } Gecko (Firefox) Blink (Chrome, Opera) Webkit (Safari) h1 { display: block; font-size: 2em; -webkit-margin-before: 0.67__qem; -webkit-margin-after: 0.67em; -webkit-margin-start: 0; -webkit-margin-end: 0; font-weight: bold } h1 { display: block; font-size: 2em; -webkit-margin-before: 0.67__qem; -webkit-margin-after: 0.67em; -webkit-margin-start: 0; -webkit-margin-end: 0; font-weight: bold; } Internet Explorer Edge Presto (Opera before 28) h1 { display: block; font-size: 2em; font-weight: bold; margin: 0.67em 0; page-break-after: avoid; } h1 { display: block; font-weight: 700; margin-bottom: 0.5em; margin-top: 0.5em; page-break-after: avoid; } h1 { display: block; font-size: 2em; font-weight: bold; margin: 0.67em 0; page-break-after: avoid; }
margin-block-start = -webkit-margin-before = margin-top margin-block-end = -webkit-margin-after = margin-bottom
margin-inline-start = -webkit-margin-start = margin-left margin-inline-end = -webkit-margin-end = margin-right ͜ΕΛ౿·͑ͯ͏Ұ֤ϒϥβͷIλάͷελΠϧΛݟͯΈ·͠ΐ͏ margin-block-start-webkit-margin-beforeͳͲ ཧϓϩύςΟ ޙड़ ͱݺΕɺࠨ͔Βӈͷԣॻ͖ʹ͓͍ͯɺ
h1 h1 { display: block; font-size: 2em; font-weight: bold; margin-block-start:
.67em; margin-block-end: .67em; } Gecko (Firefox) Blink (Chrome, Opera) Webkit (Safari) h1 { display: block; font-size: 2em; -webkit-margin-before: 0.67__qem; -webkit-margin-after: 0.67em; -webkit-margin-start: 0; -webkit-margin-end: 0; font-weight: bold } h1 { display: block; font-size: 2em; -webkit-margin-before: 0.67__qem; -webkit-margin-after: 0.67em; -webkit-margin-start: 0; -webkit-margin-end: 0; font-weight: bold; } Internet Explorer Edge Presto (Opera before 28) h1 { display: block; font-size: 2em; font-weight: bold; margin: 0.67em 0; page-break-after: avoid; } h1 { display: block; font-weight: 700; margin-bottom: 0.5em; margin-top: 0.5em; page-break-after: avoid; } h1 { display: block; font-size: 2em; font-weight: bold; margin: 0.67em 0; page-break-after: avoid; }
&EHFҎ֎΄΅ಉ͡
h2 h2 { display: block; font-size: 1.5em; font-weight: bold; margin-block-start:
.83em; margin-block-end: .83em; } Gecko (Firefox) Blink (Chrome, Opera) Webkit (Safari) h2 { display: block; font-size: 1.5em; -webkit-margin-before: 0.83__qem; -webkit-margin-after: 0.83em; -webkit-margin-start: 0; -webkit-margin-end: 0; font-weight: bold } h2 { display: block; font-size: 1.5em; -webkit-margin-before: 0.83__qem; -webkit-margin-after: 0.83em; -webkit-margin-start: 0; -webkit-margin-end: 0; font-weight: bold; } Internet Explorer Edge Presto (Opera before 28) h2 { display: block; font-size: 1.5em; font-weight: bold; margin: 0.83em 0; page-break-after: avoid; } h2 { display: block; font-weight: 700; margin-bottom: 0.5em; margin-top: 0.5em; page-break-after: avoid; } h2 { display: block; font-size: 1.5em; font-weight: bold; margin: 0.83em 0; }
Iಉ༷ &EHFҎ֎΄΅ಉ͡
࣮ଟ͘ͷλάʹ͍ͭͯɺ ֤ϒϥβͰڞ௨ͨ͠ελΠϧ͕ઃఆ͞Ε͍ͯ·͢ɻ
4 ཧతͳϓϩύςΟͱ
ԣॻ͖͔ɺॎॻ͖͔ɺࠨ͔Βӈ͔ɺӈ͔Βࠨ͔ͳͲͷ ॻࣈํʹରԠ͢Δ͜ͱΛҙຯ͠·͢ɻ͜Εʹରͯ͠ɺ ීஈզʑ͕Α͍ͬͯ͘ΔͷཧతͳϓϩύςΟ ͱͰ͋ΓɺϖʔδશମʹରԠͨ͠ͷͰ͢ɻ ཧతͱ
margin-block-start: 2em; -webkit-margin-before: 2em; margin-before: 2em; ԣॻ͖ ॎॻ͖ ྫ
ཧతͳϓϩύςΟͱɺ XSJUJOHNPEFϓϩύςΟͱͷΈ߹Θͤɺ ॎॻ͖͕ෆՄܽͰ͋Δిࢠॻ੶ͳͲͰͷ׆༻͕ظ͞Ε·͢ɻ
5 ΞτϥΠϯɾΞϧΰϦζϜ
8FCLJU(FDLPͷIʹ͢Δͱɺ BSUJDMF BTJEF OBW TFDUJPOͷIʹ ผͷελΠϧ͕ઃఆ͞Ε͍ͯΔ͜ͱʹؾ͖ͮ·͢ɻ :-webkit-any(article,aside,nav,section) h1 { font-size:
1.5em; -webkit-margin-before: 0.83__qem; -webkit-margin-after: 0.83em; } :-webkit-any(article,aside,nav,section) :-webkit-any(article,aside,nav,section) h1 { font-size: 1.17em; -webkit-margin-before: 1__qem; -webkit-margin-after: 1em; }
ηΫγϣχϯάɾίϯςϯπͭͷ߹Iͱಉ͡ελΠϧɺ ηΫγϣχϯάɾίϯςϯπͭͷ߹Iͱಉ͡ελΠϧɺ ࠷େͰηΫγϣχϯάɾίϯςϯπͭͰIͱಉ͡ελΠϧͱͳΔΑ͏ઃఆ͞Ε͓ͯΓɺ ηΫγϣχϯάɾίϯςϯπͷਂʹΑͬͯɺIͷݟ͕ͨมΘΓ·͢ɻ
·ͱΊ 6
SER AGENT STYLESHEETS 6"ελΠϧγʔτΛಡΉ͜ͱͰɺ ίʔυͷແବΛݮΒ͠ɺະདྷͷ৽ػೳʹඋ͑Α͏ʂ
HAPPY CSS LIFE! THANK YOU!