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); }