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