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