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