.impdown {position: relative} 
.imdesc {background-color:rgba(155, 155, 155, 0.42);color:#fff;position: absolute;bottom:0;padding:0 5px;transition:all 800ms;-ms-transition:all 800ms;-webkit-transition:all 800ms;-o-transition:all 800ms;-moz-transition:all 800ms}
.impdownloads:hover .imdesc {background-color:#000}
/*====> List & grid
/* Normal */
#normal_mod {text-align:center}
/* List */
#list_mod .listimg img {max-height:50px;max-width:50px;margin:5px}