.gallery {
  position: relative;
  width: 100%;
}

.galleryimage {
  display: block;
  width: 100%;
  height: 250px;
}

.galleryoverlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #008CBA;
  overflow: hidden;
  width: 100%;
  height: 100%;
  -webkit-transform: scale(0);
  -ms-transform: scale(0);
  transform: scale(0);
  -webkit-transition: .3s ease;
  transition: .3s ease;
  opacity: 0.8;
}

.gallery:hover .galleryoverlay {
  -webkit-transform: scale(1);
  -ms-transform: scale(1);
  transform: scale(1);
}

.gallerytext {
  color: white;
  font-size: 20px;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
}