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