.overlay-2 {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #000;
  overflow: hidden;
  width: 100%;
  height: 0;
  transition: .5s ease;
  display:block;
  position:absolute;
  left:0;
  bottom:0;
  text-align:left;
  overflow:hidden;
  padding:20px;
  box-sizing:border-box;
  opacity:1;
  background:-moz-linear-gradient(top,rgba(0,0,0,0) 0,rgba(0,0,0,.01) 1%,rgba(0,0,0,.63) 97%,rgba(0,0,0,.65) 100%);
  background:-webkit-linear-gradient(top,rgba(0,0,0,0) 0,rgba(0,0,0,.01) 1%,rgba(0,0,0,.63) 97%,rgba(0,0,0,.65) 100%);
  background:linear-gradient(to bottom,rgba(0,0,0,0) 0,rgba(0,0,0,.01) 1%,rgba(0,0,0,.85) 97%,rgba(0,0,0,.68) 100%);-webkit-transition:height .8s;-moz-transition:height .8s;-o-transition:height .8s;transition:height .8s
}

.media-box:hover .overlay-2 {
  height: 100%;
}

.text-2 {
  color: white;
  font-size: 16px;
  position: absolute;
  top: 65%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
}