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
A Chronicle of the Nebulous HTML5
Search
Brandon Keepers
PRO
May 23, 2013
Programming
11
1k
A Chronicle of the Nebulous HTML5
Why is EVERYTHING called HTML5, how did we get here, and what's in it for me?
Brandon Keepers
PRO
May 23, 2013
Tweet
Share
More Decks by Brandon Keepers
See All by Brandon Keepers
Automating Software Development
bkeepers
PRO
3
470
Building the GitHub workspace app
bkeepers
PRO
1
350
Contributing to Your Career
bkeepers
PRO
4
710
A Maturity Model for Embracing Open Source Software
bkeepers
PRO
3
910
Open Source Principles for Internal Engineering Teams
bkeepers
PRO
8
1.3k
Carbon, Automobiles, Bebop & Fashion
bkeepers
PRO
1
520
Tending Your Open Source Garden, v2
bkeepers
PRO
1
580
Tending Your Open Source Garden
bkeepers
PRO
2
950
The Loyal Renegade
bkeepers
PRO
3
850
Other Decks in Programming
See All in Programming
「影響が少ない」を自分の目でみてみる
o0h
PRO
2
1k
The Evolution of the CRuby Build System
kateinoigakukun
0
110
SQL Server ベクトル検索
odashinsuke
0
170
PHPで書いたAPIをGoに書き換えてみた 〜パフォーマンス改善の可能性を探る実験レポート〜
koguuum
0
140
これだけは知っておきたいクラス設計の基礎知識 version 2
masuda220
PRO
24
6.2k
Agentic Applications with Symfony
el_stoffel
2
270
List とは何か? / PHPerKaigi 2025
meihei3
0
750
MCP調べてみました! / Exploring MCP
uhzz
2
2.2k
「”誤った使い方をすることが困難”な設計」で良いコードの基礎を固めよう / phpcon-odawara-2025
taniguhey
0
120
Django for Data Science (Boston Python Meetup, March 2025)
wsvincent
0
330
Youtube Lofier - Chrome拡張開発
ninikoko
0
2.4k
新しいPHP拡張モジュールインストール方法「PHP Installer for Extensions (PIE)」を使ってみよう!
cocoeyes02
0
360
Featured
See All Featured
What’s in a name? Adding method to the madness
productmarketing
PRO
22
3.4k
A Tale of Four Properties
chriscoyier
158
23k
Bash Introduction
62gerente
611
210k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
32
5.1k
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Raft: Consensus for Rubyists
vanstee
137
6.9k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
60k
RailsConf 2023
tenderlove
30
1.1k
Facilitating Awesome Meetings
lara
54
6.3k
BBQ
matthewcrist
88
9.6k
StorybookのUI Testing Handbookを読んだ
zakiyama
29
5.6k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
45
9.5k
Transcript
HTML5 A CHRONICLE OF THE NEBULOUS extracted from the annals
of history by Brandon Keepers, a.k.a. @bkeepers.
bkeepers
1. OVERVIEW 2. HISTORY 3. CHANGES
why is EVERYTHING called HTML5?!? OVERVIEW
HTML5 Hyper Trendy Marketing Lingo v5 @kplawver |ˌeɪtʃ ˌti ˌɛm
ˈɛl fīv | noun Computing
What is HTML5, really? good question.
whatwg.org/html
w3.org/TR/html5
According to W3C: 1. Defines a single language called HTML5
2. Defines detailed processing models 3. Improves markup for documents 4. Introduces markup and APIs for emerging idioms
HTML5 is technically not… Web Workers Web Storage Web Messaging
Web SQL Database Web Audio API WebRTC WebSocket Geolocation Indexed Database File API [other web standard…]
Ian Hickson http://blog.whatwg.org/html-is-the-new-html5 "[HTML5] is now basically being used to
mean anything Web-standards-related..."
it’s complicated, let me explain…
how did we even get here? HISTORY
HTML 4.0 published December 1997
…working group shut downText HTML 4.0 published December 1997
XML 1.0 February 1998
<cough>lemmings</cough> XML 1.0 February 1998
XHTML draft December 1998
application/xhtml+xml with the “Appendix C” loophole XHTML draft December 1998
XHTML 1.1 May 2001
“Appendix C” loophole removed. XHTML 1.1 May 2001
“Appendix C” loophole removed. 99% estimated error rate on existing
pages. XHTML 1.1 May 2001
Workshop on Web Applications and Compound Documents June 2004
Competing vision to evolve HTML4 Workshop on Web Applications and
Compound Documents June 2004
Competing vision to evolve HTML4 voted 14:8 against Workshop on
Web Applications and Compound Documents June 2004
WHATWG June 2004
Web Hypertext Application Technology Working Group WHATWG June 2004
Web Hypertext Application Technology Working Group WHATWG June 2004 FAILED
OPPORTUNITY TASK FORCE!
WHATWG
Document how browsers parse HTML WHATWG
Document how browsers parse HTML Web Applications 1.0 WHATWG
W3C — WHATWG October 2006
“Some things are clearer with hindsight of several years. It
is necessary to evolve HTML incrementally.” W3C — WHATWG October 2006
HTML5 working draft January 2008
end of story? HTML5 working draft January 2008
end of story? Nope. HTML5 working draft January 2008
WHATWG drops "5" January 2012
HTML is a living standard WHATWG drops "5" January 2012
W3C February 2012
advances to "Last call" status W3C February 2012
WHATWG <> W3C July 2012
decided on a “degree of separation” WHATWG <> W3C July
2012
W3C Current Status
hopes to release stable HTML5 standard by end of 2014
W3C Current Status
WHATWG Current Status
living standard is never complete and is always being updated
and improved. WHATWG Current Status
what does it really offer me? CHANGES
Syntax
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> doctype
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> doctype
<!DOCTYPE html> doctype
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> The Root Element
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> The Root Element
<html lang="en"> The Root Element
Content-Type: text/html; charset="utf-8" <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> Character Encoding
Content-Type: text/html; charset="utf-8" <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> Character Encoding
Content-Type: text/html; charset="utf-8" <meta charset="utf-8"> Character Encoding
Implicit Type <script type="text/javascript" src="/js/site.js"></script> <link type="text/css" href="/css/site.css">
Implicit Type <script type="text/javascript" src="/js/site.js"></script> <link type="text/css" href="/css/site.css">
Implicit Type <script src="/js/site.js"></script> <link href="/css/site.css">
XML Compatible <?xml version="1.0" encoding="UTF-8"?> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Example document</title>
</head> <body> <p>Example paragraph</p> </body> </html>
New Attributes
Semantic Input Types <input type="tel"> <input type="search"> <input type="url"> <input
type="email"> <input type="datetime"> <input type="date"> <input type="month"> <input type="week"> <input type="time"> <input type="number"> <input type="range"> <input type="color">
Form Element Attributes <input placeholder="Search…"> <input required> <input autofocus> <fieldset
disabled>
Data Attributes <input data-href="/api/users" class="users" type="search"> // JS API var
input = document.querySelector('.users'); var url = input.dataset['href'];
Deprecated <basefont> <big> <center> <font> <strike> <tt> <u> <frame> <frameset>
<noframes>
New Elements
Structural Elements <section> <nav> <article> <aside> <hgroup> <header> <footer> <figure>
<figcaption>
Ineractive Elements <details> <summary> <command> <menu> <dialog>
Inline Elements <time> <mark> <meter> <progress> <ruby> <rt> <rp> <bdi>
<wbr>
Multimedia Elements <video width="320" height="240" controls> <source src="pr6.mp4" type='video/mp4; codecs="mp4a.40.2"'>
<source src="pr6.webm" type='video/webm; codecs="vp8, vorbis"'> <source src="pr6.ogv" type='video/ogg; codecs="theora, vorbis"'> </video> <audio src="/audio.ogg">
Canvas <canvas id="a"></canvas> canvas#a { height: 200px; width: 200px; }
New APIs
Canvas var a = document.getElementById("a"); var context = a.getContext("2d"); context.fillRect(0,
0, 150, 150);
2D Context Rectangles c.fillRect(x, y, w, h); c.strokeRect(x, y, w,
h); Transformations c.scale(x, y); c.rotate(angle); c.translate(x, y); c.transform(a, b, c, d, e, f); c.setTransform(a, b, c, d, e, f); Colors and Styles c.strokeStyle = color; c.fillStyle = color; Text c.fillText(text, x, y, maxWidth); Paths c.moveTo(x, y); c.lineTo(x, y); c.arcTo(x1, y1, x2, y2, radius); c.rect(x, y, w, h); c.fill(); c.stroke(); State c.save(); c.restore();
None
Drag & Drop http://www.w3.org/TR/html5/editing.html#dnd
Offline
History API
…and so much more!
Let’s review, HTML[5] is important because: 1. Defines a single
language called HTML5 2. Defines detailed processing models 3. Improves markup for documents 4. Introduces markup and APIs for emerging idioms
References Dive Into HTML5 http://diveintohtml5.info/past.html HTML5 differences from HTML4 http://www.w3.org/TR/2011/WD-html5-diff-20110405/
HTML5 gets the splits http://www.netmagazine.com/news/html5-gets-splits-122102 Wikipedia http://en.wikipedia.org/wiki/HTML5
Questions? @bkeepers bit.ly/nebulous-html5