Blurb module. It makes the whole module looks three-dimensional with a shadow around it when you hover over it. Just set the css-class .start_image to the Blurb module and give it the same padding as you have on the css effect, in this case 10px.

.start_image:hover {
transform: scale(1.050, 1.050);
-webkit-transform: scale(1.050, 1.050);
-moz-transform: scale(1.050, 1.050);
-o-transform: scale(1.050, 1.050);
-ms-transform: scale(1.050, 1.050);
-webkit-box-shadow: 0px 0px 15px 5px rgba(147, 147, 147, .75);
box-shadow: 0px 0px 15px 5px rgba(147, 147, 147, .75);
padding:10px;
}
.start_image {
-webkit-transition: all 0.7s ease;
transition: all 0.7s ease;
}