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