.view-first img {
   -webkit-transition: all 0.2s linear;
   -moz-transition: all 0.2s linear;
   -o-transition: all 0.2s linear;
   -ms-transition: all 0.2s linear;
   transition: all 0.2s linear;
}
.view-first .mask {
   -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
   filter: alpha(opacity=0);
   opacity: 0;
   background: rgba(0,0,0,0.6);
   -webkit-transition: all 0.4s ease-in-out;
   -moz-transition: all 0.4s ease-in-out;
   -o-transition: all 0.4s ease-in-out;
   -ms-transition: all 0.4s ease-in-out;
   transition: all 0.4s ease-in-out;
}

.view-first:hover .mask {
   -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=100)";
   filter: alpha(opacity=100);
   opacity: 1;
}