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