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