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