@media screen and (min-width: 768px){a:hover img {    opacity: 0.8;    -webkit-opacity: 0.8;    -moz-opacity: 0.8;    filter: alpha(opacity=80);    /* IE lt 8 */    -ms-filter: “alpha(opacity=80)”;    /* IE 8 */}}@media screen and (max-width: 767px){a:hover img {    opacity: 0.8;    -webkit-opacity: 0.8;    -moz-opacity: 0.8;    filter: alpha(opacity=80);    /* IE lt 8 */    -ms-filter: “alpha(opacity=80)”;    /* IE 8 */}}