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