各种奇妙的hack

Android

Selector Hacks

WebKit

.selector:not(*:root) {}

• Chrome *
• Safari *
• Opera ≥ 14
• Android *

• #

JavaScript Hacks

var isChromium = !!window.chrome;

• Chrome *
• Opera ≥ 14
• Android 4.0.4

• #

Media Query Hacks

@media screen and (min-0) {}

• Internet Explorer ≥ 9
• Safari 4
• Android ≥ 2.3

• #

Chrome

Selector Hacks

WebKit

.selector:not(*:root) {}

• Chrome *
• Safari *
• Opera ≥ 14
• Android *

• #

Supports Hacks

@supports (-webkit-appearance:none) {}

• Chrome ≥ 28
• Opera ≥ 14

• #

Property/Value Hacks

.selector { (;property: value;); }.selector { [;property: value;]; }

• Chrome ≤ 28
• Safari ≤ 7
• Opera ≥ 14

• #

JavaScript Hacks

var isChromium = !!window.chrome;

• Chrome *
• Opera ≥ 14
• Android 4.0.4

• #

Webkit

var isWebkit = 'WebkitAppearance' in document.documentElement.style;

• Chrome *
• Safari ≥ 3
• Opera ≥ 14

• #

var isChrome = !!window.chrome && !!window.chrome.webstore;

• Chrome ≥ 14

• #

Media Query Hacks

@media \0 screen {}

• Chrome 22-28
• Safari ≥ 7

• #

@media all and (-webkit-min-device-pixel-ratio:0) and (min-resolution: .001dpcm) { .selector {} }

• Chrome ≥ 29
• Opera ≥ 16

• #

Firefox

Selector Hacks

body:empty .selector {}

• firefox 1.5/2

• #

body:last-child .selector, x:-moz-any-link {}

• firefox ≥ 2

• #

body:last-child .selector, x:-moz-any-link, x:default {}

• firefox ≥ 3

• #

body:not(:-moz-handler-blocked) .selector {}

• firefox ≥ 3.5

• #

_::-moz-progress-bar, body:last-child .selector {}

• firefox ≥ 6

• #

_::-moz-range-track, body:last-child .selector {}

• firefox ≥ 21

• #

_:-moz-tree-row(hover), .selector {}

• firefox *

• #

Everything but Firefox and Internet Explorer ≤8

_::selection, .selector:not([attr*='']) {}

• Internet Explorer ≤ 8
• firefox *

• #

Supports Hacks

@supports (-moz-appearance:meterbar) {}

• firefox ≥ 16

• #

@supports (-moz-appearance:meterbar) and (display:flex) {}

• firefox ≥ 22

• #

@supports (-moz-appearance:meterbar) and (cursor:zoom-in) {}

• firefox ≥ 24

• #

@supports (-moz-appearance:meterbar) and (background-attachment:local) {}

• firefox ≥ 25

• #

@supports (-moz-appearance:meterbar) and (image-orientation:90deg) {}

• firefox ≥ 26

• #

@supports (-moz-appearance:meterbar) and (all:initial) {}

• firefox ≥ 27

• #

@supports (-moz-appearance:meterbar) and (list-style-type:japanese-formal) {}

• firefox ≥ 28

• #

@supports (-moz-appearance:meterbar) and (background-blend-mode:difference,normal) {}

• firefox ≥ 30

• #

JavaScript Hacks

var isFF = !!window.sidebar;

• firefox *

• #

var isFF = 'MozAppearance' in document.documentElement.style;

• firefox *

• #

var isFF = !!navigator.userAgent.match(/firefox/i);

• firefox *

• #

var isFF = typeof InstallTrigger !== 'undefined';

• firefox ≥ 1.5

• #

var isFF = !!window.globalStorage;

• firefox 2-13

• #

var isFF = /a/[-1]=='a';

• firefox 2-3

• #

var isFF = (function x(){})[-6]=='x';

• firefox 2

• #

var isFF = (function x(){})[-5]=='x';

• firefox 3

• #

Media Query Hacks

@media  all {}

• firefox ≤ 3

• #

@media screen and (-moz-images-in-menus:0) {}

• firefox ≥ 3.6

• #

@media screen and (min--moz-device-pixel-ratio:0) {}

• firefox ≥ 4

• #

@media all and (min--moz-device-pixel-ratio:0) and (min-resolution: .001dpcm) {}@media all and (-moz-images-in-menus:0) and (min-resolution: .001dpcm) {}

• firefox ≥ 8

• #

@media all and (min--moz-device-pixel-ratio:0) { @media (min- 0px) {} }@media all and (-moz-images-in-menus:0) { @media (min- 0px) {} }

• firefox ≥ 11

• #

@media all and (min--moz-device-pixel-ratio:0) and (min-resolution: 3e1dpcm) {}

• firefox ≥ 29

• #

Miscellaneous

@-moz-document url-prefix() {}

• firefox ≥ 3

• #

Internet Explorer

Selector Hacks

.unused-class can be any unused class

* html .selector {}.unused-class.selector {}

• Internet Explorer ≤ 6

• #

Everything but Internet Explorer 6

html > body .selector {}

• Internet Explorer 6

• #

.selector, {}

• Internet Explorer ≤ 7

• #

*:first-child+html .selector {}.selector, x:-IE7 {}*+html .selector {}body*.selector {}

• Internet Explorer 7

• #

.selector {}

• Internet Explorer ≤ 7

• #

Everything but Internet Explorer ≤7

html > /**/ body .selector {}head ~ /**/ body .selector {}

• Internet Explorer ≤ 7

• #

Everything but Firefox and Internet Explorer ≤8

_::selection, .selector:not([attr*='']) {}

• Internet Explorer ≤ 8
• firefox *

• #

Everything but Internet Explorer ≤8

:root .selector {}body:last-child .selector {}body:nth-of-type(1) .selector {}body:first-of-type .selector {}.selector:not([attr*='']) {}

• Internet Explorer ≤ 8

• #

Everything but Internet Explorer ≤9

html[lang='en'] .selector {}

• Internet Explorer ≤ 9

• #

_:-ms-input-placeholder, :root .selector {}

• Internet Explorer ≥ 10

• #

_:-ms-fullscreen, :root .selector {}

• Internet Explorer ≥ 11

• #

Property/Value Hacks

.selector { _property: value; }.selector { -property: value; }

• Internet Explorer 6

• #

.selector { property: value9; }.selector { property/***/: value9; }

• Internet Explorer 6-8

• #

Any combination of these characters: ! $ & * ( ) = % + @ , . / ` [ ] # ~ ? : < > |

.selector { !property: value; }.selector { $property: value; }.selector { &property: value; }.selector { *property: value; }.selector { )property: value; }.selector { =property: value; }.selector { %property: value; }.selector { +property: value; }.selector { @property: value; }.selector { ,property: value; }.selector { .property: value; }.selector { /property: value; }.selector { `property: value; }.selector { ]property: value; }.selector { #property: value; }.selector { ~property: value; }.selector { ?property: value; }.selector { :property: value; }.selector { |property: value; }

• Internet Explorer ≤ 7

• #

Acts as an !important; string after ! can be anything

.selector { property: value !ie; }

• Internet Explorer ≤ 7

• #

JavaScript Hacks

Check for Internet Explorer version

var ieVersion = /*@cc_on (function() {switch(@_jscript_version) {case 1.0: return 3; case 3.0: return 4; case 5.0: return 5; case 5.1: return 5; case 5.5: return 5.5; case 5.6: return 6; case 5.7: return 7; case 5.8: return 8; case 9: return 9; case 10: return 10;}})() || @*/ 0;

• Internet Explorer 3-10

• #

var isIE = document.all && !window.XMLHttpRequest;

• Internet Explorer ≤ 6

• #

var isIE = document.all && document.compatMode;

• Internet Explorer 6-10

• #

var isIE = !!window.ActiveXObject;

• Internet Explorer 6-10

• #

var isIE = document.all && !document.querySelector;

• Internet Explorer ≤ 7

• #

var isIE = document.all && window.XMLHttpRequest && !document.querySelector;

• Internet Explorer 7

• #

var isIE = document.all && window.XMLHttpRequest;

• Internet Explorer 7-10

• #

var isIE = navigator.appVersion.indexOf("MSIE 7.") !== -1;

• Internet Explorer 7

• #

var isIE = document.all && document.querySelector;

• Internet Explorer 8-10

• #

var isIE = document.all && !document.addEventListener;

• Internet Explorer ≤ 8

• #

var isIE = document.all && document.querySelector && !document.addEventListener;

• Internet Explorer 8

• #

var isIE = 'v'=='v';

• Internet Explorer ≤ 8

• #

var isIE = !+'v1';

• Internet Explorer ≤ 8

• #

var isIE = document.all && !window.atob;

• Internet Explorer ≤ 9

• #

var isIE = document.all && document.addEventListener && !window.atob;

• Internet Explorer 9

• #

var isIE = document.all && document.addEventListener;

• Internet Explorer 9-10

• #

var isIE = document.all && window.atob;

• Internet Explorer 10

• #

var isIE = /*@cc_on!@*/false;

• Internet Explorer ≤ 10

• #

Check for Internet Explorer version

var ieVersion = (function() { if (new RegExp("MSIE ([0-9]{1,}[.0-9]{0,})").exec(navigator.userAgent) != null) { return parseFloat( RegExp.$1 ); } else { return false; } })();

• Internet Explorer ≤ 10

• #

var isIE = eval("/*@cc_on!@*/false") && document.documentMode === 10;

• Internet Explorer 10

• #

var isIE = document.body.style.msTouchAction !== undefined;

• Internet Explorer ≥ 10

• #

var isIE = window.navigator.msPointerEnabled;

• Internet Explorer ≥ 10

• #

var isIE = 'behavior' in document.documentElement.style && '-ms-user-select' in document.documentElement.style;

• Internet Explorer 10

• #

var isIE = '-ms-scroll-limit' in document.documentElement.style && '-ms-ime-align' in document.documentElement.style;

• Internet Explorer 11

• #

Media Query Hacks

@media screen9 {}

• Internet Explorer ≤ 7

• #

@media screen\,screen9 {}

• Internet Explorer ≤ 8

• #

@media screen {}

• Internet Explorer 8

• #

@media screen and (min-0) {}

• Internet Explorer ≥ 9
• Safari 4
• Android ≥ 2.3

• #

@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {}

• Internet Explorer ≥ 10

• #

Everything but Internet Explorer and Safari ≤6

@media screen { @media (min- 0px) {} }

• Internet Explorer *
• Safari ≤ 6

• #

Conditional comments

<!--[if IE 6]> Internet Explorer 6 <![endif]--><!--[if IE 7]> Internet Explorer 7 <![endif]--><!--[if IE 8]> Internet Explorer 8 <![endif]--><!--[if IE 9]> Internet Explorer 9 <![endif]-->

• Internet Explorer 6-9

• #

<!--[if lte IE 6]> Internet Explorer 6 or less <![endif]--><!--[if lte IE 7]> Internet Explorer 7 or less <![endif]--><!--[if lte IE 8]> Internet Explorer 8 or less <![endif]--><!--[if lte IE 9]> Internet Explorer 9 or less <![endif]-->

• Internet Explorer 6-9

• #

<!--[if gte IE 6]> Internet Explorer 6 or greater <![endif]--><!--[if gte IE 7]> Internet Explorer 7 or greater <![endif]--><!--[if gte IE 8]> Internet Explorer 8 or greater <![endif]--><!--[if gte IE 9]> Internet Explorer 9 or greater <![endif]-->

• Internet Explorer 6-9

• #

<!--[if IE]> Internet Explorer 9- <![endif]-->

• Internet Explorer ≤ 9

• #

Everything but Internet Explorer ≤9

<!--[if !IE]><!--> Everything but Internet Explorer ≤9 <!--<![endif]-->

• Internet Explorer ≤ 9

• #

Opera

Selector Hacks

*|html[xmlns*=""] .selector {}

• Safari 2/3.1
• Opera 9.25

• #

html:first-child .selector {}

• Opera ≤ 9.27
• Safari 2

• #

_:-o-prefocus, body:last-child .selector {}

• Opera ≥ 9.5

• #

@media all and (-webkit-min-device-pixel-ratio:10000), not all and (-webkit-min-device-pixel-ratio:0) {}

• Opera ≤ 11

• #

WebKit

.selector:not(*:root) {}

• Chrome *
• Safari *
• Opera ≥ 14
• Android *

• #

Supports Hacks

@supports (-webkit-appearance:none) {}

• Chrome ≥ 28
• Opera ≥ 14

• #

Property/Value Hacks

.selector { (;property: value;); }.selector { [;property: value;]; }

• Chrome ≤ 28
• Safari ≤ 7
• Opera ≥ 14

• #

JavaScript Hacks

var isOpera = /^function (/.test([].sort);

• Opera ≤ 9.64

• #

Replace X by the version

var isOpera = window.opera && window.opera.version() == X;

• Opera ≤ 12

• #

var isOpera = !!window.opera;

• Opera ≤ 12.16

• #

var isChromium = !!window.chrome;

• Chrome *
• Opera ≥ 14
• Android 4.0.4

• #

Webkit

var isWebkit = 'WebkitAppearance' in document.documentElement.style;

• Chrome *
• Safari ≥ 3
• Opera ≥ 14

• #

var isOpera = !!window.opera || /opera|opr/i.test(navigator.userAgent);

• Opera *

• #

Media Query Hacks

@media (min-resolution: .001dpcm) { _:-o-prefocus, .selector {} }

• Opera ≥ 12

• #

@media all and (-webkit-min-device-pixel-ratio:0) and (min-resolution: .001dpcm) { .selector {} }

• Chrome ≥ 29
• Opera ≥ 16

• #

Opera Mini

JavaScript Hacks

var isOperaMini = Object.prototype.toString.call(window.operamini) === '[object OperaMini]';

• Opera Mini *

• #

var isOperaMini = (navigator.userAgent.indexOf('Opera Mini') > -1);

• Opera Mini *

• #

Safari

Selector Hacks

WebKit

.selector:not(*:root) {}

• Chrome *
• Safari *
• Opera ≥ 14
• Android *

• #

html:first-child .selector {}

• Opera ≤ 9.27
• Safari 2

• #

html[xmlns*=""] body:last-child .selector {}html[xmlns*=""]:root .selector {}

• Safari 2-3

• #

*|html[xmlns*=""] .selector {}

• Safari 2/3.1
• Opera 9.25

• #

_::-moz-svg-foreign-content, :root .selector {}

• Safari 5.1-6

• #

Property/Value Hacks

.selector { (;property: value;); }.selector { [;property: value;]; }

• Chrome ≤ 28
• Safari ≤ 7
• Opera ≥ 14

• #

JavaScript Hacks

Webkit

var isWebkit = 'WebkitAppearance' in document.documentElement.style;

• Chrome *
• Safari ≥ 3
• Opera ≥ 14

• #

var isSafari = /a/.__proto__=='//';

• Safari ≤ 5

• #

var isSafari = /constructor/i.test(window.HTMLElement);

• Safari *

• #

var isSafari = !!navigator.userAgent.match(/safari/i) && !navigator.userAgent.match(/chrome/i) && typeof document.body.style.webkitFilter !== "undefined" && !window.chrome;

• Safari 6

• #

Media Query Hacks

@media screen and (min-0) {}

• Internet Explorer ≥ 9
• Safari 4
• Android ≥ 2.3

• #

Everything but Internet Explorer and Safari ≤6

@media screen { @media (min- 0px) {} }

• Internet Explorer *
• Safari ≤ 6

• #

@media \0 screen {}

• Chrome 22-28
• Safari ≥ 7

• #