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