[CSS]IE11、Firefox、Chromeのみに適用させるCSSハック

IE11

@media all and (-ms-high-contrast:none){
	*::-ms-backdrop, .selector	{
		background: #ccc
	}
}

Firefox

@-moz-document url-prefix() {
	.selector {
		background: #ccc
	}
}

Google Chrome

@media screen and (-webkit-min-device-pixel-ratio:0) {
	.selector {
		background: #ccc
	}
}