Have been looking at ways of improving on the previous Version
Many thanks to LAMj
This Version will add a drop shadow to the cells on hover
Here is the code
@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document url("chrome://fastdial/content/fastdial.html")
{
.thumbnail {
border: 7px solid #ffffff !important;
-moz-border-radius:10px !important;
-moz-box-shadow:3px 3px 10px -2px #000000 !important;
}
}
This is the effect