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