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