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