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