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