Entire Icon Box as a Link?

Hi,
I am using the icon boxes with a large icon at the top of the box, and would like to use the entire icon box as a link that also has a hover effect, not just the top icon or icon box title. I have tried applying a hover attribute in CSS like this

.iconbox:hover {
background: #fcfcfc !important;
}

but this didn’t work. And how would I assign a link to the entire icon box?

any suggestions?

thanks,
Neil