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