Add a Zoom Effect on Hover to Post Images

Here is a cool piece of CSS to achieve this effect:

.post-image {
position: relative;
overflow: hidden;
}
.post-image img {
max-width: 100%;

-moz-transition: all 0.3s;
-webkit-transition: all 0.3s;
transition: all 0.3s;
}
.post-image:hover img {
-moz-transform: scale(1.2);
-webkit-transform: scale(1.2);
transform: scale(1.2);
}