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