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