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