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