.thumb_proj 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;
   max-width: 100%;
   height: auto;
}
.thumb_proj .mask {
   -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
   filter: alpha(opacity=0);
   opacity: 0;
   background: #000;
   -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;
   top: 0;
   left: 0;
   position: absolute;
   width: 100%;
   height: 98%;
   text-align: center;
   pointer-events: none;
}
.thumb_proj:hover .mask {
   -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=100)";
   filter: alpha(opacity=70);
   opacity: 0.7;
}

.thumb_proj:hover .more {
   -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=100)";
   filter: alpha(opacity=100);
   opacity: 1;
   background: url(../img/more.png) no-repeat center center;
   width: 100%;
   height: 100%;
   margin: 0 auto;
   text-align: center;
   -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;
   
}