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