sentisoft

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+, IE10 */
 filter: gray; /* IE6-9 */
 -webkit-filter: grayscale(100%); /* Chrome 19+ & Safari 6+ */
 -webkit-transition:all .6s ease;
 -webkit-backface-visibility: hidden; /* Fix for transition flickering */
}
img.grayscale:hover {
 filter: none;
 -webkit-filter: grayscale(0%);