.popover-content{background:#fff;border-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.15);padding:12px;z-index:9999;&[data-popper-placement^=top] [data-popper-arrow]{bottom:-4px}&[data-popper-placement^=bottom] [data-popper-arrow]{top:-4px}[data-popper-arrow]{position:absolute;width:8px;height:8px;background:inherit;transform:rotate(45deg)}}.fade-enter-active,.fade-leave-active{transition:opacity .2s}.fade-enter-from,.fade-leave-to{opacity:0}.custom-content{max-width:300px;padding:16px;h4{color:#1890ff;margin-bottom:8px}}