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