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