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