Element block pseudo-element :after generated with margin 0px display block transform line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) border-radius overflow hidden background font-weight normal float none padding 4px border 0px rgba(0,0,0,1) solid position static cursor default z-index auto width 160px height auto font-size 16px box-shadow 2px 2px 2px rgba(0,0,0,0.5) box-sizing content-box transition