.download-container {
 position: relative;
  
  border: 1px solid #333;
  margin: 2%;
  overflow: hidden;
  width: 300px;
}

.download-container img {
  width: 300px;  
  -moz-transition: all 0.3s;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}
.download-container:hover img {
  -moz-transform: scale(1.2);
  -webkit-transform: scale(1.2);
  transform: scale(1.2);
}