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