.fifth-effect img {
opacity:0.2;
-moz-transition: all 0.3s ease-in;
-webkit-transition: all 0.3s ease-in;
}
.fifth-effect .mask {
cursor:pointer;
opacity:1;
visibility:visible; -moz-box-sizing:border-box;
-webkit-box-sizing:border-box;
box-sizing:border-box;
-moz-transition: all 0.4s cubic-bezier(0.940, 0.850, 0.100, 0.620);
-webkit-transition: all 0.4s cubic-bezier(0.940, 0.850, 0.100, 0.620);
}
.fifth-effect:hover .mask {
border:0px double rgba(0,0,0,0.7);
opacity:0;
visibility:hidden;
}
.fifth-effect:hover img {
opacity:1;
}