HTML5 Design: Building with HTML5

OREILLYMEDIA 2011

HTML5
D E S I G N
❦

Christopher Schmitt | http://twitter.com/@teleject

THINGS ARE GOOD
BETWEEN US, XHTML,
RIGHT?
I MEAN. WE GET ALONG WELL.
AND WE BOTH LIKE STUFF.
2
3

“IMAGINE YOU MADE A
BROWSER THAT ONLY
RENDERED SITES AUTHORED
IN VALID HTML OR XHTML.
HOW MUCH OF THE WEB
WOULD YOUR USERS BE ABLE
TO SEE? 1%? 0.1%? LESS?”
MARK PILGRIM
http://dev.opera.com/articles/view/mama-markup-validation-report/
3

“THE ATTEMPT TO GET THE
WORLD TO SWITCH TO XML,
INCLUDING QUOTES AROUND
ATTRIBUTE VALUES AND
SLASHES IN EMPTY TAGS AND
NAMESPACES ALL AT ONCE
DIDN’T WORK.”
SIR TIM BERNERS-LEE
5

http://www.ﬂickr.com/photos/teleject/432030263/
6

91
http://www.w3.org/TR/html4/index/elements.html

http://microformats.org/
10

BLUEPRINTS VS REALITY

http://www.amazon.com/gp/product/0140139966
14

“TAKE CARE
OF THE LUXURIES AND
THE NECESSITIES WILL TAKE
CARE OF THEMSELVES.”
FRANK LLOYD WRIGHT

15

AGENDA ITEMS

• What’s different from XHTML to HTML5

• Building with HTML5 (You are here.)

• BasicSyntax, Progressive Markup, Accessibility, Geolocation,
Audio/Video, Web Forms

• Prizes! http://goo.gl/so6Am

16

HTML 4.01 Transitional DTD:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">

XHTML 1.0 Transitional DTD:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

19

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>AUSTIN, TX BBQ RESTAURANTS</title>
</head>
<body>
<h1>....</h1>
<p>...</p>
</body>
</html>

20

EXERCISE
• Go to HTML validator at
http://validator.w3.org/#validate_by_input

• Then type the following HTML (below) and hit validate:

<!DOCTYPE html>
<title>Small HTML5</title>
<p>Hello world</p>

21

<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<h1>....</h1>
<p>...</p>
</body>
</html>
http://shiﬂett.org/blog/2005/dec/googles-xss-vulnerability
26

SPECIFY YOUR
LANGUAGE

27

<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<h1>....</h1>
<p>...</p>
</body>
</html>

28

INCLUDING
<SCRIPT> & <STYLE>

29

<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="styles.css" />
<script src="scripts.js"></script>
</head>
<body>
<h1>....</h1>
<p>...</p>
</body>
30

<img src=“ﬁle.png” />

32

<IMG SRC=ﬁle.png />

33

<iMg SrC=ﬁle.png />

34

<IMG SRC=ﬁle.png />

35

<video controls=controls>

36

EVERYTHING THAT
WAS BAD IN 1999
IS GOOD AGAIN

37

RELEARNING SYNTAX
• Attribute quotes “not really” required

• UPPERCASE and lowercase HTML elements allowed

• So is CaMeLcAse typing.

• No more need to do self-closing tags like <IMG /> or <BR />

• Also, no more minimalization. So, this is okay: <dl compact>

• Basically, everything that was bad from HTML4 in XHTML5 is good again.

• Full circle, baby! One more time.

38

BRINGING BACK <B>
AND OTHER TAGS

39

<p>My name is
<em>Jane</em>, not
John.</p>

40

<p>Sally thought to
herself, <i>when will IE6
die?</i></p>

41

<p><strong>Registration is
required</strong> for this
event.</p>

42

<p><b>Once upon a
time,</b> there was a man
who lost his mind.</p>

43

<p><small>The owner of
this blog is not responsible
for mind blowage. Please
consume at your own
risk.</small></p>

44

<abbr title="Accessible
Rich Internet
Applications">ARIA</
abbr>

No more <acronym>
45

THE COOLEST THING
EVER ABOUT HTML5.
(TO ME.)

46

<h1>
<a href="http://example.com">
HTML5, for Fun & Proﬁt
</a>
</h1>

<img src="logo.png" alt="HTML5 for
Fun and Proﬁt" />
</a>

47

<h1>HTML5, for Fun & Proﬁt</
h1>
<img src="logo.png" alt="HTML5 for
Fun and Proﬁt" />
</a>

48

FIGURES & CAPTIONS

49

<figure>
! <img src="chart.png" alt="Chart of
increasing awesomeness" />
! <figcaption>The increasing amount of
awesome that this blog
demonstrates.</figcaption>
</figure>

50

FIGURE

• Not restricted to containing IMGs

• Tables

• Audio

• Video

• Charts

• Code snippets

51

COLLAPSABLE CONTENT

52

<details>
<summary>Upcoming Topics</summary>
<p>For the new year, we have a great line up
of articles!</p>
<ul>
<li>Understanding the
Outline Algorithm</li>
<li>When to Use
! <code>hgroup</code></li>
<li>Machine Semantics with Microdata</li>
</ul>
</details>
Only works in Chrome; all others - https://gist.github.com/370590
54

<ol start="3">
<li>Apples</li>
<li>Oranges</li>
<li>Bananas</li>
</ol>

57

<p>The results are in for your favorite fruit,
and we have a tie for ﬁrst place!</p>
<ol>
<li value="1">Bananas</li>
<li value="1">Oranges</li>
<li value="2">Apples</li>
</ol>

59

EDITABLE ELEMENTS

60

<div contenteditable>
<p>Quick Fox Jumped Over the Lazy Dog</
p>
</div>

62

http://markdotto.com/playground/3d-text/
63

<h2 draggable>Block-Level Links</h2>

http://html5doctor.com/native-drag-and-drop/
65

HTML5, MICROFORMATS
& METADATA

66

“Designed for humans ﬁrst and
machines second,
microformats are a set of simple,
open data formats built upon
existing and widely
adopted standards.”

68

“HTML design patterns for common
chunks of content that web builders need
to markup anyway.”

“Oh, and Google understands them, too.”

69

REPLACING ABBR

• <ABBR> element is used by screenreaders to expand abbreviations
like “lbs” or “NCAAP”

• However unintended consequences occurred trying to workaround
browser bugs for other HTML elements

• What happens when a screenreaders text like this:

• “Let’s go to <abbr class="geo"
title="30.300474;-97.747247">Austin, TX</abbr>”

http://www.brucelawson.co.uk/2009/microformats-accessibility-html-5-again/
71

<div class="vevent">
<a class="url" href="http://www.web2con.com/">http://
www.web2con.com</a>
<span class="summary">Web 2.0 Conference</span>:
<abbr class="dtstart"
title="2007-10-05">October 5</abbr>-
<abbr class="dtend" title="2007-10-20">20</
abbr>,
at the <span class="location">Argent Hotel, San Francisco,
CA</span>
</div>

72

<div class="vevent">
<a class="url" href="http://www.web2con.com/">http://
www.web2con.com</a>
<span class="summary">Web 2.0 Conference</span>:
<time class="dtstart"
datetime="2007-10-05">October 5</time>-
<time class="dtend"
datetime="2007-10-19">19</time>,
at the <span class="location">Argent Hotel, San Francisco,
CA</span>
</div>

http://www.brucelawson.co.uk/2009/microformats-accessibility-html-5-again/
73

POSTSCRIPT

• <ABBR> issue has ben resolved with new pattern (dropping <ABBR>
altogether):
http://microformats.org/wiki/value-class-pattern

• <p>Let’s go to <span class="geo">51° 30' 48.45", -0° 8'
53.23" (<span class="value">51.513458;-0.14812</
span>)</span> </p>

74

DATA-ATTRIBUTE

• You can set data-attribute to any element you want.

• Set meta information that can be utilized by JavaScript or CSS later on.

<img src=“john-smith.jpg”
data-imgtype=“mugshot”
alt=“John Smith’s mugshot”>

75

ATTR SELECTOR

img[data-imgtype=“mugshot”] {
/* CSS rules go here */
}

76

DIV ID=“header”
DIV ID=“nav”

DIV ID=“section”

DIV ID=“sidecolumn”
DIV ID=“article”

DIV ID=“footer”
78

<HEADER>
<NAV>

<SECTION>

<ASIDE>
<ARTICLE>

<FOOTER>
79

ARTICLE VS ASIDE VS
SECTION

• Marc Grabsanki says:

• Article is unique content to that document

• Section is a thematic grouping of content, typically with a heading -
pretty generic

• Aside is content that is tangentially related, like a sidebar
div has no meaning whatsoever, so there is nothing semantic about
divs

80

ARTICLE VS ASIDE VS
SECTION
• Bruce Lawson says:

• Aside is for something tangentially related to its parent element. Or, if a
sibling to the main content, it can be used to make sidebars of navigation,
recent comments, colophons, author bios etc.

• Article is a discrete piece of content that could be syndicated - a blog
post, a news item, a comment, a widget

• Section can also contain articles. for example, you could have a page with a
<section> full of entertainment articles, and a section of political news etc.

81

ARTICLE VS ASIDE VS
SECTION

• Molly Holzschlag, Opera standards evangelist, says:

• <section> clariﬁes <div>

• <article> 'replaces' <div id="content">

• <aside> 'replaces' <div id="sidebar">

• Chris Mills, Opera browser employee, plays it safe:
http://boblet.tumblr.com/post/130610820/html5-structure1

82

WHAT ABOUT THE DIVS?

• Marc Grabanski, jQuery and HTML5 guy:

• “div has no meaning whatsoever, so there is nothing semantic about
divs”

• Bruce Lawson, Opera browser employee:

• “Like all semantic questions, it depends on the context. If your only
reason for wanting an element is to group stuff for styling, it's a div.”

83

<body>
<header>
<h1>Heading </h1>
</header>
<nav>
<h3>Site Navigation</h3>
<ul>...</ul>!
</nav>
<section>
<article>
<h3>Weblog Entry</h3>
</article>
</section>!
<aside>
<p>You are reading "Chocolate Rain", an entry posted on <time datetime="2009-03-05">5
March, 2009</time>, to the <a href="#">Misty collection</a>. See other posts in <a
href="#">this collection</a>.</p>
</aside>
<footer>
<p>...</p>
</footer>
</body>

84

PROGRESSIVELY
ENHANCED HTML5
(INFUSED WITH SHIM)

89

http://modernizr.com/
91

<html lang="en" class=" canvas canvastext
geolocation rgba hsla multiplebgs borderimage
borderradius boxshadow opacity cssanimations
csscolumns cssgradients cssreﬂections
csstransforms csstransforms3d csstransitions
video audio localstorage sessionstorage
webworkers applicationcache fontface">

93

.audio #error {
display: none;
}
.no-audio #error-box {
background-color: #ffffcc;
padding: 1px 10px;
color: #000;
border: 5px solid #ffff66;
}

CSS Feature Detection
94

Modernizr.load({
test: Modernizr.geolocation,
yep : 'geo.js',
nope: 'geo-polyﬁll.js'
});

JS Feature Detection
96

Pick and Choose Features to Detect
98

<!DOCTYPE html>
<html lang="en">
<head>
<title>Basic HTML5 Web Document Structure</title>
! </head>
! <body>
<h1>Video Example</h1>
<audio src="html5test.ogg" autoplay controls>
! <a href="html5test.ogg">Download audio</a>
</audio>
! </body>
</html>

101

HTML5 AUDIO

• AUDIO element attributes are SRC, AUTOBUFFER, AUTOPLAY,
LOOP, CONTROLS

• If you don’t have CONTROL, player becomes transparent

103

HTML5 AUDIO SUPPORT

FF3.5+ S4+ Ch3+ Op10.5+ IE9+

Ogg
Y Y Y
Vorbis

MP3 Y Y Y

WAV Y Y Y

104

SUPPORTING AUDIO

<audio controls autobuffer>
<source src="html5audio.mp3" />
<source src="html5audio.ogg" />

</audio>

Use Flash for older versions of IE
105

SUPPORTING AUDIO

• If you do insert audio, setting the ﬁle to autoplay is not recommended,
as it interferes with the experience for web surfers using screen
readers.

• Don’t use WAV ﬁle type.

• Better to ship a compact disc to the user instead.

106

<!DOCTYPE html>
<html lang="en">
<head>
! </head>
! <body>
<object width="425" height="344"><param name="movie"
value="http://www.youtube.com/v/4GuKSqAg5xI&hl=en&fs=1"></
param><param name="allowFullScreen" value="true"></
param><param name="allowscriptaccess" value="always"></
param><embed src="http://www.youtube.com/v/
4GuKSqAg5xI&hl=en&fs=1" type="application/x-shockwave-ﬂash"
allowscriptaccess="always" allowfullscreen="true" width="425"
height="344"></embed></object>
! </body>
</html>

108

<!DOCTYPE html>
<html lang="en">
<head>
! </head>
! <body>
<video src="html5test.ogg"
! width="320" height="240" controls
! poster="html5testvideoposter.jpg">
! <a href="html5testvideo.ogg">Download movie</a>
</video>
! </body>
</html>

109

<!DOCTYPE html>
<html lang="en">
<head>
! </head>
! <body>
<video src="html5test.ogg"
! width="320" height="240" controls
! poster="html5testvideoposter.jpg">

DEMO
! <a href="html5testvideo.ogg">Download movie</a>
</video>
! </body>
</html>

110

HTML5 VIDEO

• WIDTH and HEIGHT should be required, IMO, but movie plays anyway
based on the values in the video ﬁle itself.

• Video formats may have their own posterframe. The browser should
use that by default unless overridden by valid POSTER attribute value.

• Text can be included within VIDEO element to allow user to download
video if their browser doesn’t support.

• If you want to give users control, use CONTROL attribute.

111

HTML5 VIDEO

• Video can start automatically if using the AUTOPLAY=”1” attribute and
value.

• Spec provides for LOOP, AUTOBUFFER which also take a value of O
or 1.

• Codecs support...

112

HTML5 VIDEO
“It would be helpful for interoperability if all browsers could
support the same codecs.
However, there are no known codecs that satisfy all the
current players: we need a codec that is known to not require
per-unit or per-distributor licensing, that is compatible with the
open source development model, that is of sufﬁcient quality as
to be usable, and that is not an additional submarine patent
risk for large companies.
This is an ongoing issue and this section will be updated once
more information is available.”
- http://www.whatwg.org/specs/web-apps/current-work/#video-and-
audio-codecs-for-video-elements
113

CODECS
• Ogg (or “Vorbis”)

• No need to worry about patents

• H.264

• Created by the MPEG group

• If you have blu-ray disc player, you are using it

• WebM

• A wrapper for the VP8 video and Ogg audio streams

114

VIDEO CODEC SUPPORT

FF3.6+ S Ch5+ Op10.6+ IE9+

Ogg Y Y Y

H.264 Y Y* Y

WebM (W4.02+) (Ch6+) Y

115

LESSONS LEARNED
• To get most <video> support, you need 2 video ﬁles: H.264
and .OGG.

• iOS Devices can handle MP4 (H.264)

• Safari, IE, Flash can deliver MP4 (H.264)

• Firefox, Opera can deliver .OGG

• Then hit them with FLV video, which supports H.264

http://camendesign.com/code/video_for_everybody

116

http://ﬁrefogg.org/

117

http://www.videolan.org/vlc/
118

http://handbrake.fr/

119

LESSONS LEARNED

• Use VLC or Firefogg to encode common movie ﬁles types to OGG

• H.264 encoding? Use Handbrake

• If you are hot to trot for HTML5 Video, like, right now, check out Mark
Pilgrim’s tutorial:
http://diveintohtml5.org/video.html

• Good primer:
http://dev.opera.com/articles/view/introduction-html5-video/

120

! <script>
! function playPause() {
! var myVideo = document.getElementsByTagName('video')[0];
! if (myVideo.paused)
! myVideo.play();
! else
! myVideo.pause();
! }
! </script>

123

<input type=button onclick="playPause()" value="Play/Pause"
tabindex="0" />

124

HTML5 VIDEO & CAPTIONS

125

For students with LD and struggling or
beginning readers, the use of captions or
subtitles can lead to increases in:
•reading speed,
•word knowledge,
•decoding,
•vocabulary acquisition,
•word recognition,
•reading comprehension, and
•oral reading rates.

126

[Captioning] has been shown to improve
reading skills among adults who are non-
readers.

http://www.ldonline.org/article/35793
127

QUICK & DIRTY
CAPTIONING

130

http://github.com/johnmcc/jCaps
131

SRT FILES
• SRT files are text files used in video playback; therefore, they do
not contain any video data.

• Text
file containing subtitles used by various video playback
programs; supported by DivX, DVD, and other video formats;

• Includesthe time each subtitle should be displayed followed by
the text of the subtitles.

• Subtitlefiles are often named according to the language of the
subtitles, i.e. "moviename-eng.srt" for English and
"moviename-ger.srt" for German subtitles.
134

TRANSCRIPT-EN.SRT
1
00:00:00,000 --> 00:00:6,000
Allow me to introduce myself My name is Tay It's T-A-Y, T-A-Y to the Z

2
00:00:06,000 --> 00:00:9,000
This is the web and it's gonna murder your TV It was Chocolate Rain

3
00:00:09,500 --> 00:00:11,500
Wrote a song about that history Chocolate Rain

4
00:00:12,000 --> 00:00:15,000
Now I'm paid a hefty hefty fee Chocolate Rain
135

<video id="myVid" width="400" src="cherry-chocolate-
rain.ogv" autobuffer controls>
  <track src="transcript-en.srt" type="text/srt" language="en"
role="textaudesc"></track>
  <track src="transcript-gr.srt" type="text/srt" language="gr"
role="textaudesc"></track>
  <p>Alternative text...</p>
</video>

137

<video id="myVid" width="400" src="cherry-chocolate-rain.ogv"
autobuffer controls>
  <track src="transcript-en.srt" type="text/srt"
language="en" role="textaudesc"></track>
  <track src="transcript-gr.srt" type="text/srt"
language="gr" role="textaudesc"></track>
  <p>Alternative text goes here.</p>
</video>

138

HTML5 GEOLOCATION

139

OH, PATHOS!

http://youtu.be/_naLuRykun8
140

if (navigator.geolocation) {
!
navigator.geolocation.getCurrentPosition(show_coordinat
es);
!
function show_coordinates(position){
! alert('Your latitude is ' + position.coords.latitude + ' ' +
! 'and your longitude is ' + position.coords.longitude +
'.');
! }
} Modernizr.load({
test: Modernizr.geolocat
...or use Modernizr! yep : 'geo.js',
nope: 'geo-polyﬁll.js'
146
});

http://ion.christopherschmitt.com/geolocation/
147

THAT’S GREAT, BUT

•I don’t read longitude and latitude.

• More importantly, my clients or site visitors don’t comprehend
longitude and latitude.

• And I don’t love the code!

148

http://2010.incontrolconference.com/eats/
149

http://atxwebshow.com/coffeeshops/
150

http://atxwebshow.com/coffeeshops/
151

STEP #1
Muck-N-Dave's Texas BBQ
1603 South Congress
Austin, TX 78704 USA
512-590-3387

Old School BBQ and Grill
2326 E Cesar Chavez St
Austin, TX, 78702 USA
512-974-6830

The Shed BBQ Rolling Joint
1816 E 6th Street.
Austin, TX, 78702 USA
152

STEP #2

• Convert addresses to hCard microformats

http://microformats.org/code/hcard/creator
153

<div class="vcard">
! <a class="url fn n" href="http://www.theqcard.com/">
! <span class="given-name">Jane</span>
! <span class="additional-name"></span>
! <span class="family-name">Smith</span>
! </a>
! <div class="org">Old School BBQ and Grill</div>

! <div class="adr">
! ! <div class="street-address">2907 E MLK Jr Blvd.</div>
! ! <span class="locality">Austin</span>,
! ! <span class="region">TX</span>,
! ! <span class="postal-code">78702</span>
! ! <span class="country-name">USA</span>
! </div>
! <div class="tel">512-974-6830</div>
! <div class="note distance">
! </div> http://microformats.org/code/hcard/creator
</div>
154

STEP #3
hCard

hCard

hCard

hCard
155

STEP #3
<ol>
<li>
hCard
</li>
<li>
hCard
</li>
<li>
hCard
</li>
<li>
hCard
156
</li>

STEP #4
<div id="locations">
! <ol>
! ! <li></li>
! ! ...
! </ol>
</div>

157

STEP #5

http://github.com/teleject/HTML5-GeoLocation-jQuery-Plugin
158

STEP #6

<script type="text/javascript" src="https://
ajax.googleapis.com/ajax/libs/jquery/1.6.4/
jquery.min.js"></script>
<script type="text/javascript" src="js/jquery-
location.js"></script>

159

STEP #7

http://code.google.com/apis/maps/signup.html
160

STEP #8
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/
jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery-location.1.0.0.js"></script>
! $(document).ready(function()
! {
! ! $('#locations2').location({
! ! 'apiKey' : 'YOUR_API_KEY_HERE'
! ! });!
! });
</script>

161

ONE MORE THING...

163

<div class="vcard">
! <a class="url fn n" href="http://www.theqcard.com/">
! <span class="given-name">Jane</span>
! <span class="additional-name"></span>
! <span class="family-name">Smith</span>
! </a>
! <div class="org">Old School BBQ and Grill</div>

! <div class="adr" data-longitude="-97.723410" data-
latitude="30.262098">
! ! <div class="street-address">2907 E MLK Jr Blvd.</div>
! ! <span class="locality">Austin</span>,
! ! <span class="region">TX</span>,
! ! <span class="postal-code">78702</span>
! ! <span class="country-name">USA</span>
! </div>
! <div class="tel">512-974-6830</div>
! <div class="note distance">
! </div>
http://geocoder.us/
</div> 164

$('#locations').location(
! {
! ! apiKey: 'YOUR_API_KEY_HERE',
! ! geodata: '#geodata', // site visitor’s location
! ! notiﬁcation: '.notiﬁcation', // progress indicator
! ! recheck: '.recheck',
! ! distance: '.distance', //where the distance appears
! ! geoAdr: '.geoAdr', // longitude and latitude
! ! listElement: 'li' // different listing element?
! } );

165

<form>
<p><label>Search <input type="search"
name="query"></label></p>
<p><button type="submit">Submit</
button></p>
</form>

168

<form>
<ﬁeldset>
<legend>Contact Information</legend>
<p><label>E-mail address
<input type="email" name="email">
</label></p>
<p><label>Web site
<input type="url" name="website">
</label></p>
<p><label>Telephone number
<input type="tel" name="phone">
</label></p>
</ﬁeldset>
<p><button type="submit">Submit</button>
</p>
</form> 170

<form>
<p>
<label>Appointment Date and Time
<input type="datetime"
name="dateAndTime"></label>
</p>
</form>

172

<form>
<ﬁeldset>
<legend>Appointment Request</legend>
<p><label>Date <input type="date"
name="date"></label></p>
<p><label>Time <input type="time"
name="time"></label></p>
</ﬁeldset>
<p><button type="submit">Submit</button></
p>
</form>

Support in Chrome 10+, Safari 4+, Opera 9+, iOS, Android

174

<form>
<p><label>Quantity <input type="number"
name="quantity"></label></p>
p>
</form>

Support in Chrome 10+, Safari 4+, Opera 9+, iOS, Android

176

<form>
<p><label>Quantity (must order in pairs of 2)
<input type="number"
name="quantity" min="2" max="20"
step="2"></label></p>
p>
</form>

178

<form>
<p><label>Volume <input type="range"
name="volume" min="0" max="10" step=".5"
value="5"></label></p>
</form>

180

<form>
<p><label>Background color <input
type="color" name="bg"></label></p>
<p><label>Foreground color <input type="color"
name="fg"></label></p>
p>
</form>

182

<form>
<p><label>Donation amount <input type="text"
name="donation"
list="donations"></label></p>
<datalist id="donations">
<option value="10.00">10.00</option>
</datalist>
p>
</form> Support in Firefox 4+, Opera 10+

184

<form>
<p><label for="donation">Donation amount</
label>
<datalist id="donations">
<select name="donation"><option></option>
<option>Other</option>
</select>
If other, please specify:
</datalist>
<input type="text" id="donation"
name="donation" list="donations"></p>
http://adactio.com/journal/4272/
p>
</form> 186

<form>
<ﬁeldset>
<legend>Login</legend>
<p><label>Username <input type="text"
name="username" required></label></p>
<p><label>Password <input type="password"
name="pwd" required></label></p>
</ﬁeldset>
p>
</form> IE 10+, FF 4+, Chrome 10+, Safari 5+,
Opera 10+, iOS, Andriod

188

<p><label>E-mail address <input type="email"
name="email"
placeholder="user@domain.com"></label></p>
<p><label>Web site <input type="url"
name="website" placeholder="http://
www.domain.com/"></label></p>
<p><label>Telephone number <input type="tel"
name="phone"
placeholder="123-123-1234"></label></p>

190

<form>
<p><label>Search <input type="search"
name="query" autofocus></label></p>
p>
</form>

191

<form>
<ﬁeldset>
<legend>Login</legend>
<p><label>Username <input type="text"
name="username"></label></p>
<p><label>Password <input type="password"
name="pwd"
autocomplete="off"></label></p>
</ﬁeldset>
p>
</form>

192

<form>
<p><label>Telephone number <input type="tel"
name="phone"
pattern="[2-9][0-9]{2}-[0-9]{3}-[0-9]{4}"
title="North American format: XXX-XXX-
XXXX"></label></p>
p>
</form>

194

<canvas id="myCanvas" width="300" height="150">
Fallback content, in case the browser does not support Canvas.
</canvas>

196

return;
}

if (!context) {
return;
}

context.strokeStyle = '#f00';
context.lineWidth = 4;

// Draw a right triangle.
context.beginPath();
context.moveTo(10, 10);
context.lineTo(100, 10);
context.ﬁll();
context.stroke();
context.closePath();
}, false);

199

return;
}

if (!context) {
return;
}

context.strokeStyle = '#f00';
context.lineWidth = 4;

// Draw a right triangle.
context.beginPath();
context.moveTo(10, 10);
context.ﬁll();
context.stroke();
context.closePath();
}, false);

201

http://ﬂickr.com/photos/dunstan/3099313036/
202

BUT IS IT ACCESSIBLE?

203

ACCESSIBLE CANVAS ISSUES

• Setting user interface elements in canvas

• Setting images in canvas

• Setting text in canvas

http://www.paciellogroup.com/blog/?p=362
204

PROGRESSIVE ENHANCEMENT
& CANVAS
“Progressive enhancement is a strategy for web design that
emphasizes accessibility, semantic HTML markup, and external style
sheet and scripting technologies.”
http://en.wikipedia.org/wiki/Progressive_enhancement
205

https://github.com/mezzoblue/PaintbrushJS
206

http://csssummit.com/
207

• Take mugshot

• Make it black and white

• Compress with ImagOptim

http://imageoptim.pornel.net/
208

<img class="mugshot ﬁlter-tint" data-pb-tint-
opacity="0.2" data-pb-tint-colour="#517777"
src="ﬁlename.png" />

209

box-shadow: 1px 1px 4px
#fff, 2px 2px 4px #fff, 3px
3px 2px #333;
border-radius: 300px;

210

http://www.ﬁlamentgroup.com/lab/
jquery_visualize_plugin_accessible_charts_graphs_from_tables_html5_canvas/
211

http://www.ﬁlamentgroup.com/lab/
jquery_visualize_plugin_accessible_charts_graphs_from_tables_html5_canvas/
212

<table >
! <caption>My Push Ups</caption>
! <thead>
<tr>
! <td></td>
! <th>M</th>
! <th>Tu</th>
! <th>W</th>
! <th>Th</th>
! <th>F</th>
! <th>Sa</th>
</tr>
! </thead>
! <tbody>
<tr>
! <th>Chris</th>
! <td>56</td>
! <td>30</td>
! <td>50</td>
! <td>0</td>
! <td>45</td>
! <td>120</td>
! <td>0</td>
</tr>
! </tbody>
</table>

213

$(function(){
! });
</script>

217

http://msdn.microsoft.com/en-us/library/bb250524(VS.85).aspx
218

script><![endif]-->
<script type="text/javascript"
src="visualize.jQuery.js"></script>
$(function(){
! });
</script>

219

script><![endif]-->
$(function(){
! });
</script>

220

table.accessHide {
position: absolute;
left: -999999px;
}
table { height: 100px; width: 250px;}

221

script><![endif]-->
$(function(){
! });
</script>

222

http://ﬂickr.com/photos/dunstan/3099313036/
224

XHTML, ...I THINK I WANT TO SEE
ANOTHER MARKUP SPEC.
225

RECOMMENDED
Design for Web Applications by Matt May and Wendy
• Universal
Chisholm

• Bulletproof Ajax by Jeremy Keith

• Designing with Progressive Enhancement by Filament Group

• Microformats Made Simple by Emily Lewis

• How Buildings Learn by Stewart Brand

• HTML5 Cookbook by a whole bunch of people!

226

UPCOMING EVENTS
• AIGA In Control Conference on Feb. 20-21st.

•2 days, 1 track

• HTML5, CSS3, jQuery, Mobile Design, Content Strategy, and
much more

• Orlando, FL

• http://2012.incontrolconference.com/

227

THANK YOU!
Christopher Schmitt
schmitt@heatvision.com
http://twitter.com/teleject
228

HTML5 Design: Building with HTML5

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