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