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