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