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