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