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