Thansk a lot Eric, I managed to use the info you provided to add back the box styling in my own custom.css.
That is, I added code instead of removing it (to keep my own css apart, and not modify epik’s css).
This is the code I added:
/* Stylize the home with the box items */
.home .entry {
box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
-moz-box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
-webkit-box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
background: #fff;
}