Element block pseudo-class :hover generated with background height 40% border-radius display block cursor default border 0px rgba(0,0,0,1) solid overflow hidden float left box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal transition line-height 1 position relative margin 10px font-size 16px box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) width 40% z-index auto padding 9px transform