Remodeling @font-face - Speaker Deck

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N REMODELING C T @

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REMODELING N T O F C A F E @ -

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@zachleat zachleat.com

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MOTIVATION THIS ONE WEIRD TRICK A G EN D A FORMATS LOADING.. . .. . DOwNLOAD

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@font-face

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45% http://httparchive.org/trends.php?s=Top1000 of the top 1000

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http://httparchive.org/trends.php?s=Top1000 AVERAGE PAYLOAD 68KB

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0 275 550 825 1100 CSS javaScript Images WebFonts TRANSFER SIZE

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REMOVE AN IMAGE! JAVASCRIPT SIZE? WORRIED ABOUT

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REMOVE AN IMAGE! JAVASCRIPT SIZE? WORRIED ABOUT

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NOT ALL REQUESTS ARE CREATED EQUAL

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What is in THE critical path?

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EFFECT ON PERCEIVED PERFORMANCE

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EFFECT ON PERCEIVED PERFORMANCE NON-BlockING

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EFFECT ON PERCEIVED PERFORMANCE NON-BlockING IMAGES

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EFFECT ON PERCEIVED PERFORMANCE BlockING NON-BlockING IMAGES

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EFFECT ON PERCEIVED PERFORMANCE BlockING NON-BlockING IMAGES JAVASCRIPT

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EFFECT ON PERCEIVED PERFORMANCE BlockING NON-BlockING IMAGES CSS JAVASCRIPT

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EFFECT ON PERCEIVED PERFORMANCE BlockING NON-BlockING WEB FONTS IMAGES CSS JAVASCRIPT

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1997 @font-‐face

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3.0 4.0

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1997 @font-‐face

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@font-‐face { font-‐family: The Font that Could; src: url('icanfont.woff') format('woff'), url('icanfont.ttf') format('truetype'); }

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@font-‐face { font-‐family: The Font that Could; src: url('icanfont.woff') format('woff'), url('icanfont.ttf') format('truetype'); }

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WHAT FORMATS?

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David Hasselwoff USE WOFF

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Woff caniuse.com 6 5 7.5 7

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6 5 7.5 7 Woff caniuse.com

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6 5 7.5 7 Woff caniuse.com + OTF or TTF ( )

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vs. OTF TTF

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vs. OTF TTF

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vs. OTF TTF AN EXTENSION TO TTF

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vs. OTF TTF AN EXTENSION TO TTF MORE TYPOGRAPHIC FEATURES:

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vs. OTF TTF AN EXTENSION TO TTF MORE TYPOGRAPHIC FEATURES: LIGATURES

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vs. OTF TTF AN EXTENSION TO TTF MORE TYPOGRAPHIC FEATURES: LIGATURES SMALLCAPS

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vs. OTF TTF AN EXTENSION TO TTF MORE TYPOGRAPHIC FEATURES: LIGATURES SMALLCAPS ET CETERA

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vs. OTF TTF AN EXTENSION TO TTF MORE TYPOGRAPHIC FEATURES: LIGATURES MORE UBIQUITOUS SMALLCAPS ET CETERA

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https://developer.mozilla.org/en-US/docs/Web/CSS/font-feature-settings font-feature-settings CSS PROPERTY

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http://stateofwebtype.com/beta/ STATE OF WEB TYPE

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DON’T STOP at WOFF + OTF

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WOFF BY ONE ERROR

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Woff caniuse.com + OTF or TTF ( ) WOFF2 +

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Woff caniuse.com + OTF or TTF ( ) WOFF2 + 6 5 7.5 7

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IS 30% SMALLER THAN WOFF On average across all of Google Fonts: https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/j27Ou4RtvQI/discussion WOFF2

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@font-‐face { font-‐family: The Font that Could; src: url('icanfont.woff2') format('woff2'), url('icanfont.woff') format('woff'), url('icanfont.otf') format('opentype'); }

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WOFF2 See The Wizard

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NEED IE8? Add EOT

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NEED IE8?

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NEED IE8? ARE YOU SURE?

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ICON FONTS

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SUPPLEMENTaL IC O N FO N T STANDALONE Share on Twitter Menu

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DIFFERENT USE CASE DIFFERENT @FONT-FACE STACK

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@font-‐face { font-‐family: The Font that Could; src: url('icanfont.eot?#iefix') format('embedded-‐opentype'), url('icanfont.woff2') format('woff2'), url('icanfont.woff') format('woff'), url('icanfont.ttf') format('truetype'); } IC O N FO N T

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SVG FONTS D EFIN ITELY N O

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SVG FONTS D EFIN ITELY N O

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WWTkD

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WWT k D YPE IT

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https://twitter.com/bram_stein/status/506812176212824066

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SVG * WITH TEMPORARY EXCEPTION TO PLATFORMS STILL USING GDI INSTEAD OF DIRECTWRITE, LIKE WINDOWS XP and VISTA

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SVG FONTS REMOVED FROM SVG SPECIFICATION SVG * WITH TEMPORARY EXCEPTION TO PLATFORMS STILL USING GDI INSTEAD OF DIRECTWRITE, LIKE WINDOWS XP and VISTA

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SVG FONTS REMOVED FROM SVG SPECIFICATION SVG REMOVED FROM CHROME* * WITH TEMPORARY EXCEPTION TO PLATFORMS STILL USING GDI INSTEAD OF DIRECTWRITE, LIKE WINDOWS XP and VISTA

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SVG FONTS REMOVED FROM SVG SPECIFICATION SVG REMOVED FROM CHROME* * WITH TEMPORARY EXCEPTION TO PLATFORMS STILL USING GDI INSTEAD OF DIRECTWRITE, LIKE WINDOWS XP and VISTA NEVER SUPPORTED ON IE, Firefox.

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6 5 7.5 7 Woff caniuse.com + TTF + SVG

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6 5 7.5 7 Woff caniuse.com + TTF + SVG 6 4.1

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https://github.com/scottjehl/Device-Bugs/issues/43 TH IS IS B A D

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TH IS IS B A D

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@font-‐face { font-‐family: The Font that Could; src: url('icanfont.woff2') format('woff2'), url('icanfont.woff') format('woff'), url('icanfont.otf') format('opentype'), url('icanfont.svg#icantfont') format('svg'); }

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@font-‐face { font-‐family: The Font that Could; src: } url('icanfont.otf') format('opentype'); url('icanfont.woff2') format('woff2'), url('icanfont.woff') format('woff'),

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@font-‐face { font-‐family: The Font that Could; src: } url('icanfont.ttf') format('truetype'); url('icanfont.woff2') format('woff2'), url('icanfont.woff') format('woff'),

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@font-‐face { font-‐family: The Font that Could; src: } url('icanfont.eot?#iefix') format('embedded-‐opentype'), url('icanfont.otf') format('opentype'); url('icanfont.woff2') format('woff2'), url('icanfont.woff') format('woff'), IC O N FO N T

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LET’s PUT THE @FONT-FACE BLOCK ON OUR WEB PAGE

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IF NOT USED, NOT DOWNLOADED

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Needs Content.

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8 36 23 6.1–8 2.3, 4.1 7–8 DOWNLOADS WITH EMPTY ATTACHED NODE DOWNLOADS EVERY TIME DOWNLOADS WITH NON-EMPTY ATTACHED NODE 28 9–11

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8 36 23 6.1–8 2.3, 4.1 7–8 DOWNLOADS WITH EMPTY ATTACHED NODE DOWNLOADS EVERY TIME DOWNLOADS WITH NON-EMPTY ATTACHED NODE 28 9–11

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/* Does not download */ var el = document.createElement('div'); el.style.fontFamily = 'The Font That Could'; /* Initiates download in Firefox, IE 9+ */ document.body.appendChild(el); /* Initiates download in WebKit/Blink */ el.innerHTML = 'Content.';

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unicode- range

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BASIC LATIN CODE POINT Arial Chunk Five x26 & & x41 A A x42 B B x43 C C x44 D D x45 E E

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@font-‐face { font-‐family: Ampersands; src: url('sands.woff2') format('woff2'), url('sands.woff') format('woff'), url('sands.ttf') format('truetype'); unicode-‐range: U+26; } unicode- range

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Needs Content. unicode- range

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&roid. unicode- range

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&roid

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&roid FALLBACK AMPERSANDS

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unicode- range 36 9, 10, 11 23 8 4.1 8 ALWAYS DOWNLOADS SMART DOWNLOAD NOT SUPPORTED

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unicode- range 36 9, 10, 11 23 8 4.1 8 ALWAYS DOWNLOADS SMART DOWNLOAD NOT SUPPORTED

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ALWAYS SUBSET FONTS WHEN USING UNICODE-RANGE

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SUBSET OR ELSE &roid AMPERSANDS

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http://www.fontsquirrel.com/tools/webfont-generator

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https://www.flickr.com/photos/79157069@N03/11616536203/ OUR @FONT-FACE REQUEST LEAVES THE NEST

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LOCAL FONT { @FONT-FACE {

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LOCAL FONT { @FONT-FACE {

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Flash of Invisible Text

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FOIT

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http://www.webpagetest.org/video/compare.php?tests=141205_VE_STK-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141205_VE_STK-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141205_QN_160H-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141205_QN_160H-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141205_QN_160H-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141209_AY_Z79-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141209_AY_Z79-r:1-c:0

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http://www.webpagetest.org/video/compare.php?tests=141209_AY_Z79-r:1-c:0

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LOCAL FONT { @FONT-FACE {

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LOCAL FONT { @FONT-FACE {

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Flash of UNSTYLED Text

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FOUT

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LOCAL FONT { @FONT-FACE {

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LOCAL FONT { @FONT-FACE {

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Flash of UNSTYLED Text

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FOUT

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FOUT WITH 0 SECOND TIMEOUT

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ICON FONTS

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YOUR ICON FONT HERE 0xe001 0xe002 0xe003 0xe004 PRIVATE USE AREA

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https://twitter.com/raganwald/status/452092613529567233 GitHub

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https://twitter.com/raganwald/status/452092613529567233 GitHub

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FOUT FOIT REVIEW

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FOIT

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ABCDEFGH FOIT @FONT-FACE LOAD

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FOIT IC O N FO N T

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FOIT IC O N FO N T @FONT-FACE LOAD

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FOUT, 3 seconds

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3 S ABCDEFGH FOUT, 3 seconds

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3 S ABCDEFGH FOUT, 3 seconds @FONT-FACE LOAD

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IC O N FO N T FOUT, 3 seconds

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3 S IC O N FO N T FOUT, 3 seconds

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3 S @FONT-FACE LOAD IC O N FO N T FOUT, 3 seconds

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FOUT, 0 seconds ABCDEFGH

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ABCDEFGH FOUT, 0 seconds @FONT-FACE LOAD

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FOUT, 0 seconds IC O N FO N T

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SUCCESS. FOUT, 0 seconds IC O N FO N T

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SUCCESS. FOUT, 0 seconds IC O N FO N T equivalent to FOIT IF YOU USE THE PUA

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Timeouts 36 28 9–11 0 S 23 3 S 3 s 3 s 8 > 60 s 4.1 > 60 s 6 > 60 s > 60 s 8

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WHAT HAPPENS WHEN A USER HITS THE STOP BUTTON?

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LOCAL FONT { @FONT-FACE { TH IS IS B A D

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HOW’S EVERYONE DOING?

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LET’S FIX STUFF.

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Code

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Code

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FOIT & FOUT CONTROL OF NEED MORE

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CSS Font Loading http://dev.w3.org/csswg/css-font-loading/

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var doc = document, docEl = doc.documentElement; doc.fonts.load("1em Raleway") .then(function() { // The font has loaded. docEl.className += " raleway-‐loaded"; });

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body { font-‐family: sans-‐serif; } .raleway-‐loaded body { font-‐family: Raleway, sans-‐serif; }

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FONTFACEONLOAD github.com/zachleat/fontfaceonload (GZIP) 1.5KB JS USES THE CSS FONT LOADING API WHEN AVAILABLE.

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var docEl = document.documentElement; FontFaceOnload( "Raleway", { success: function() { // The font has loaded. docEl.className += " raleway-‐loaded"; } });

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FOUT RALEWAY

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FOUT @FONT-FACE LOAD

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EMBRACE THE FOUT

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fontfamily.io

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font-rendering CSS PROPERTY https://github.com/KenjiBaheux/css-font-rendering from Kenji Baheux, Ilya Grigorik, David Kuettel, Tab Atkins

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body { font-‐family: Raleway; font-‐rendering: block 0s swap infinite; } FOUT FOIT

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ICON FONTS

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var doc = document, docEl = doc.documentElement; FontFaceOnload( "My Icon Font", { glyphs: "\uE600\uE601\uE602\uE605", success: function() { // The font has loaded. docEl.className += " icon-‐font-‐loaded"; } }); IC O N FO N T

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Share on Twitter Share on Twitter SUPPLEMENTaL IC O N FO N T

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.icon-‐font-‐loaded .twitter:before { font-‐family: My Icon Font; content: "\e600"; } IC O N FO N T

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FOIT IC O N FO N T Share on Twitter

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FOIT IC O N FO N T @FONT-FACE LOAD Share on Twitter

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EMBRACE THE FOIT IC O N FO N T

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STANDALONE IC O N FO N T

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https://twitter.com/bjankord/status/451367657493647361 Hamburger Helper

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Hamburger Emoji

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= Veggieburger

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– Gluten Free Hamburger https://twitter.com/brouxhaha/status/464787128334180354

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Facebook’s Manburger https://twitter.com/jedschmidt/status/455871778267463680

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Hungryman Burger

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https://twitter.com/patrick_h_lauke/status/535473606965624832 Hamburgler Menu

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FOUT, TEXT to ICON IC O N FO N T MENU

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FOUT, TEXT to ICON IC O N FO N T @FONT-FACE LOAD

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MENU STANDALONE IC O N FO N T

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.icon-‐font-‐loaded .hamburger .icon:before { font-‐family: My Icon Font; content: "\e600"; } .icon-‐font-‐loaded .hamburger .text { /* Visually hide but keep for screen readers */ clip: rect(0 0 0 0); overflow: hidden; position: absolute; height: 1px; width: 1px; } IC O N FO N T

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OR IC O N FO N T

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Higher UNICODE Ranges CODE POINT Arial x2261 ≡ x2605 ★ x2665 ♥ x2603 ‚

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unicode.johnholtripley.co.uk

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FOUT, GLYPH TO ICON IC O N FO N T ≡

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FOUT, GLYPH TO ICON IC O N FO N T @FONT-FACE LOAD

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MENU STANDALONE IC O N FO N T

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.hamburger .text { /* Visually hide but keep for screen readers */ clip: rect(0 0 0 0); overflow: hidden; position: absolute; height: 1px; width: 1px; } .hamburger .icon:before { content: "\2261"; } .icon-‐font-‐loaded .hamburger .icon:before { font-‐family: My Icon Font; content: "\e600"; } IC O N FO N T

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READ AS x2261 ≡ IDENTICAL TO x2605 ★ BLACK STAR or STAR x2665 ♥ HEART SUIT ACCESSIBILITY IC O N FO N T

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MENU STANDALONE IC O N FO N T

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FILAMENTGROUP/A-Font-Garde https://github.com/filamentgroup/a-font-garde IC O N FO N T