b/w to color transition animation is not working on Firefox.
-webkit-transition: 1s all ease-in; -o-transition: 1s all ease-in; -moz-transition: 1s all ease-in; transition: 1s all ease-in; filter: grayscale(0%)!important; -webkit-filter: grayscale(0%); filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'saturate\' values=\'1\'/></filter></svg>#grayscale");
b/w to color transition animation is not working on Firefox.