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-width:0\0) {}
- Internet Explorer/Edge ≥ 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
- Safari ≥ 9
- Internet Explorer/Edge >= 12
- 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
Media Query Hacks
@media \0 all {}
- firefox ≤ 3
Selector Hacks
body:last-child .selector, x:-moz-any-link, x:default {}
- firefox ≥ 3
body:not(:-moz-handler-blocked) .selector {}
- firefox ≥ 3.5
Media Query Hacks
@media screen and (-moz-images-in-menus:0) {}
- firefox ≥ 3.6
@media screen and (min--moz-device-pixel-ratio:0) {}
- firefox ≥ 4
Selector Hacks
_::-moz-progress-bar, body:last-child .selector {}
- firefox ≥ 6
Media Query Hacks
@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-width: 0px) {} }
@media all and (-moz-images-in-menus:0) { @media (min-width: 0px) {} }
- firefox ≥ 11
Supports Hacks
@supports (-moz-appearance:meterbar) {}
- firefox ≥ 16
Selector Hacks
_::-moz-range-track, body:last-child .selector {}
- firefox ≥ 21
Supports Hacks
@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
Media Query Hacks
@media all and (min--moz-device-pixel-ratio:0) and (min-resolution: 3e1dpcm) {}
- firefox ≥ 29
Supports Hacks
@supports (-moz-appearance:meterbar) and (background-blend-mode:difference,normal) {}
- firefox ≥ 30
JavaScript Hacks
var isFF = !!window.sidebar;
- firefox *
Selector Hacks
_:-moz-tree-row(hover), .selector {}
- firefox *
JavaScript Hacks
var isFF = 'MozAppearance' in document.documentElement.style;
- firefox *
var isFF = !!navigator.userAgent.match(/firefox/i);
- firefox *
var isFF = !!window.globalStorage;
- firefox 2-13
var isFF = typeof InstallTrigger !== 'undefined';
- firefox ≥ 1.5
var isFF = /a/[-1]=='a';
- firefox 2-3
var isFF = (function x(){})[-6]=='x';
- firefox 2
var isFF = (function x(){})[-5]=='x';
- firefox 3
Miscellaneous
@-moz-document url-prefix() {}
- firefox ≥ 3
Selector Hacks
Everything but Firefox and Internet Explorer ≤8
_::selection, .selector:not([attr*='']) {}
- Internet Explorer/Edge ≤ 8
- firefox *
Internet explorer/edge
Supports Hacks
@supports (-webkit-appearance:none) {}
- Chrome ≥ 28
- Safari ≥ 9
- Internet Explorer/Edge >= 12
- Opera ≥ 14
Selector Hacks
.unused-class can be any unused class
* html .selector {}
.unused-class.selector {}
- Internet Explorer/Edge ≤ 6
.selector, {}
- Internet Explorer/Edge ≤ 7
*:first-child+html .selector {}
.selector, x:-IE7 {}
*+html .selector {}
body*.selector {}
- Internet Explorer/Edge 7
.selector\ {}
- Internet Explorer/Edge ≤ 7
Everything but Internet Explorer 6
html > body .selector {}
- Internet Explorer/Edge 6
Everything but Internet Explorer ≤7
html > /**/ body .selector {}
head ~ /**/ body .selector {}
- Internet Explorer/Edge ≤ 7
Everything but Firefox and Internet Explorer ≤8
_::selection, .selector:not([attr*='']) {}
- Internet Explorer/Edge ≤ 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/Edge ≤ 8
Property/Value Hacks
.selector { _property: value; }
.selector { -property: value; }
- Internet Explorer/Edge 6
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/Edge ≤ 7
Acts as an !important; string after ! can be anything
.selector { property: value !ie; }
- Internet Explorer/Edge ≤ 7
.selector { property: value\9; }
.selector { property/*\**/: value\9; }
- Internet Explorer/Edge 6-8
Media Query Hacks
@media screen\9 {}
- Internet Explorer/Edge ≤ 7
@media \0screen\,screen\9 {}
- Internet Explorer/Edge ≤ 8
@media \0screen {}
- Internet Explorer/Edge 8
@media screen and (min-width:0\0) {}
- Internet Explorer/Edge ≥ 9
- Safari 4
- Android ≥ 2.3
Selector Hacks
_:-ms-input-placeholder, :root .selector {}
- Internet Explorer/Edge ≥ 10
_:-ms-fullscreen, :root .selector {}
- Internet Explorer/Edge ≥ 11
Media Query Hacks
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {}
- Internet Explorer/Edge ≥ 10
Everything but Internet Explorer and Safari ≤6
@media screen { @media (min-width: 0px) {} }
- Internet Explorer/Edge *
- Safari ≤ 6
JavaScript Hacks
var isIE = document.all && !window.XMLHttpRequest;
- Internet Explorer/Edge ≤ 6
var isIE = document.all && document.compatMode;
- Internet Explorer/Edge 6-10
var isIE = !!window.ActiveXObject;
- Internet Explorer/Edge 6-10
var isIE = document.all && !document.querySelector;
- Internet Explorer/Edge ≤ 7
var isIE = document.all && window.XMLHttpRequest && !document.querySelector;
- Internet Explorer/Edge 7
var isIE = document.all && window.XMLHttpRequest;
- Internet Explorer/Edge 7-10
var isIE = document.all && document.querySelector;
- Internet Explorer/Edge 8-10
var isIE = document.all && !document.addEventListener;
- Internet Explorer/Edge ≤ 8
var isIE = document.all && document.querySelector && !document.addEventListener;
- Internet Explorer/Edge 8
var isIE = document.all && !window.atob;
- Internet Explorer/Edge ≤ 9
var isIE = document.all && document.addEventListener && !window.atob;
- Internet Explorer/Edge 9
var isIE = document.all && document.addEventListener;
- Internet Explorer/Edge 9-10
var isIE = document.all && window.atob;
- Internet Explorer/Edge 10
var isIE = /*@cc_on!@*/false;
- Internet Explorer/Edge ≤ 10
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/Edge 3-10
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/Edge ≤ 10
var isIE = navigator.appVersion.indexOf("MSIE 7.") !== -1;
- Internet Explorer/Edge 7
var isIE = '\v'=='v';
- Internet Explorer/Edge ≤ 8
var isIE = !+'\v1';
- Internet Explorer/Edge ≤ 8
var isIE = eval("/*@cc_on!@*/false") && document.documentMode === 10;
- Internet Explorer/Edge 10
var isIE = document.body.style.msTouchAction !== undefined;
- Internet Explorer/Edge ≥ 10
var isIE = window.navigator.msPointerEnabled;
- Internet Explorer/Edge ≥ 10
var isIE = 'behavior' in document.documentElement.style && '-ms-user-select' in document.documentElement.style;
- Internet Explorer/Edge 10
var isIE = '-ms-scroll-limit' in document.documentElement.style && '-ms-ime-align' in document.documentElement.style;
- Internet Explorer/Edge 11
Conditional comments
<!--[if IE]> Internet Explorer 9- <![endif]-->
- Internet Explorer/Edge ≤ 9
Everything but Internet Explorer ≤9
<!--[if !IE]><!--> Everything but Internet Explorer ≤9 <!--<![endif]-->
- Internet Explorer/Edge ≤ 9
<!--[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/Edge 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/Edge 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/Edge 6-9
Opera
Selector Hacks
WebKit
.selector:not(*:root) {}
- Chrome *
- Safari *
- Opera ≥ 14
- Android *
Supports Hacks
@supports (-webkit-appearance:none) {}
- Chrome ≥ 28
- Safari ≥ 9
- Internet Explorer/Edge >= 12
- 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
Selector Hacks
html:first-child .selector {}
- Opera ≤ 9.27
- Safari 2
JavaScript Hacks
var isOpera = /^function \(/.test([].sort);
- Opera ≤ 9.64
Selector Hacks
_:-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
JavaScript Hacks
var isOpera = !!window.opera;
- Opera ≤ 12.16
Replace X by the version
var isOpera = window.opera && window.opera.version() == X;
- Opera ≤ 12
Media Query Hacks
@media (min-resolution: .001dpcm) { _:-o-prefocus, .selector {} }
- Opera ≥ 12
JavaScript Hacks
var isOpera = !!window.opera || /opera|opr/i.test(navigator.userAgent);
- Opera *
Selector Hacks
*|html[xmlns*=""] .selector {}
- Safari 2/3.1
- Opera 9.25
Media Query Hacks
@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 *
Supports Hacks
@supports (-webkit-appearance:none) {}
- Chrome ≥ 28
- Safari ≥ 9
- Internet Explorer/Edge >= 12
- Opera ≥ 14
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
Media Query Hacks
@media screen and (min-width:0\0) {}
- Internet Explorer/Edge ≥ 9
- Safari 4
- Android ≥ 2.3
Everything but Internet Explorer and Safari ≤6
@media screen { @media (min-width: 0px) {} }
- Internet Explorer/Edge *
- Safari ≤ 6
Selector Hacks
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
JavaScript Hacks
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 \\0 screen {}
- Chrome 22-28
- Safari ≥ 7