@media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (min-device-pixel-ratio: 2) {

	.replace-2x {

		font-size: 1px;

	}

	.example {

		background-image: url(http://alatangkatangkut.com/themes/supershop/css/images/example2x.png);

		-webkit-background-size:13px 13px;

		-moz-background-size:13px 13px;

		-o-background-size:13px 13px;

		background-size:13px 13px;

	}

}