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