img { -webkit-transform-style : preserve-3d; -webkit-transition-property : -webkit-transform; -webkit-transition-duration : .750s; -moz-transform-style : preserve-3d; -moz-transition-property : -webkit-transform; -moz-transition-duration : .750s; -o-transform-style : preserve-3d; -o-transition-property : -webkit-transform; -o-transition-duration : .750s; transform-style : preserve-3d; transition-property : -webkit-transform; transition-duration : .750s; } img:hover { -webkit-transform: rotateY(180deg); -moz-transform: rotateY(180deg); -o-transform: rotateY(180deg); transform: rotateY(180deg); }