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