Element block pseudo-class :active generated with box-shadow 1px 1px 1px rgba(0,0,0,0.3) width 160px box-sizing content-box border 0px rgba(0,0,0,1) solid overflow hidden font-weight normal padding 20px cursor default display block z-index auto background transform margin 3px font-size 16px height auto line-height 1 float none text-shadow 1px 1px 1px rgba(0,0,0,0.2) transition border-radius position static