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