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img.grayscale {
	filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 3.5+ */
	filter: gray; /* IE6-9 */
	-webkit-filter: grayscale(100%); /* Chrome 19+ & Safari 6+ */
	-webkit-transition: all .5s ease-in-out;
	-moz-transition: all .5s ease-in-out;
	-ms-transition: all .5s ease-in-out;
	-o-transition: all .5s ease-in-out;
	transition: all .5s ease-in-out;
}

img.grayscale:hover {
	filter: none;
	-webkit-filter: grayscale(0%);
}