.titlle{text-align:center;font-size:20px}.msgContent{text-indent:2em;max-height:500px;margin-top:15px;overflow:auto;padding:10px;line-height:24px}.msgContent::-webkit-scrollbar{width:4px;height:1px}.msgContent::-webkit-scrollbar-thumb{border-radius:10px;background-color:#2d8cf0}.msgContent::-webkit-scrollbar-track{-webkit-box-shadow:inset 0 0 5px rgba(0,0,0,.2);box-shadow:inset 0 0 5px rgba(0,0,0,.2);background:#fff;border-radius:10px}