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