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