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