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