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