Element block pseudo-element :before generated with font-size 16px border 0px rgba(0,0,0,1) solid transform margin 0px position absolute line-height 1 padding 4px float none cursor default display block font-weight normal transition z-index auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) width 160px overflow hidden height auto background box-shadow 1px 1px 1px rgba(0,0,0,0.3) box-sizing content-box border-radius