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