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