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