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