Element block pseudo-class :active generated with padding 20px background transform display block box-sizing content-box overflow hidden cursor default border 2px rgba(0,0,0,1) solid text-shadow 1px 1px 1px rgba(0,0,0,0.2) border-radius font-weight normal z-index auto transition line-height 1 height auto font-size 16px box-shadow 1px 1px 1px rgba(0,0,0,0.3) position static width 160px margin 0px float none