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