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