.marker-box{position:relative;background-color:#1697de;color:#fff;padding:16px;width:150px;text-align:center;border-radius:8px;box-shadow:0 4px 8px rgba(0,0,0,.2)}.marker-box:after{position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-top:10px solid #fff}