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