HACK CSS
https://browserstrangeness.github.io/css_hacks.html

EDGE 12+
@supports(-ms-ime-align:auto){ }
IE 8+
@media screen\0{}
IE (JS)
if(/Trident/.test(navigator.userAgent)){ };
EDGE (JS)
if(/Edge/.test(navigator.userAgent)){ };
IE + EDGE (JS)
if(/MSIE|Trident|Edge/i.test(navigator.userAgent)){ };

EDGE + FIREFOX
@supports((-ms-ime-align:auto) or (-moz-appearance:meterbar)){ }

FF 3+
@-moz-document url-prefix(){ }
FF 4+
@media screen and (-moz-device-pixel-ratio){ }
FF 16+
@supports(-moz-appearance:meterbar){ }

CHROME 29+ (obsolète)
@media (-webkit-min-device-pixel-ratio:0) and (min-resolution:.001dpcm){ }
CHROME 42+ (obsolète)
@supports (-webkit-appearance:none) and (x:0){.btn-3d{transform:perspective(1px)}}
CHROME 30+
_::backdrop,_:future,_:not(*:root), .selector{ }
CHROME (JS)
if(/Chrome/.test(navigator.userAgent)&&/Google Inc/.test(navigator.vendor)){ };

SAFARI 6.1-10
@media screen and (min-color-index:0) and (-webkit-min-device-pixel-ratio:0){@media{ }}
SAFARI 7-10
@media \\0 screen{ }
SAFARI 9+
@supports(-webkit-marquee-repetition:infinite) and (object-fit:fill){ }
SAFARI 10.1+
@media not all and (min-resolution:.001dpcm){@media{ }}
SAFARI (2019)
_:lang(x)+_:-webkit-full-screen-document, .selector{ }
SAFARI (JS)
if(/^((?!chrome|android).)*safari/i.test(navigator.userAgent)){ };

MOBILES
@media screen and (max-width:900px), (max-height:650px), (orientation:portrait){ }
MOBILES + TABLETS (TACTILE)
@media screen and (hover:none){ }
DESKTOPS (NOT TACTILE)
@media screen and (hover:hover){ }

ANDROID
@media screen and (min-width:0\0){ }
ANDROID (JS)
if(/Android/.test(navigator.userAgent)){ };

TACTILE (JS)
if(navigator.maxTouchPoints > 0){ };
NOT TACTILE (JS)
if(!(navigator.maxTouchPoints)){ };
IPAD (JS) (à tester)
if((/iPad/i).test(navigator.userAgent)){ };
MAC (JS) (à tester)
if(/^Mac/.test(navigator.platform)){ };
APPLE (JS) (à tester)
if(/^Mac|iPhone|iPad/.test(navigator.platform)){ };

2019
/* IE11       */ _:lang(x)::-ms-backdrop, .selector{ }
/* Edge       */ _:-ms-lang(x)::backdrop, .selector{ }
/* Chrome 30+ */ _::backdrop,_:future,_:not(*:root), .selector{ }
/* SAFARI     */ _:lang(x)+_:-webkit-full-screen-document, .selector{ }
/* Firefox    */ _:lang(x)::-moz-placeholder, .selector{ }