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