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