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