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