a img { border: 0px; opacity: .60; filter: alpha(opacity=100); -o-transition: opacity 1.5s linear; -webkit-transition: opacity 1.5s linear; -moz-transition: opacity 1.5s linear;} a:hover img { opacity: 1; filter: alpha(opacity=80); -o-transition: opacity .1s linear; -webkit-transition: opacity .1s linear; -moz-transition: opacity 1.5s linear;}