Element block pseudo-class :active generated with z-index auto position static display block font-weight normal transition cursor default box-sizing content-box padding 20px font-size 16px border-radius width 160px box-shadow 1px 1px 1px rgba(0,0,0,0.3) text-shadow 1px 1px 1px rgba(0,0,0,0.2) background margin 0px overflow hidden height auto float none border 0px rgba(0,0,0,1) solid line-height 1 transform