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