.my_topic_history_list>ul>li{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #f2f2f2;padding-bottom:20px;margin-bottom:20px}.my_topic_history_list>ul>li:last-child{border-bottom:none}.my_topic_history_list>ul>li .my_topic_history_info>h3{font-size:18px;font-family:PingFang SC;font-weight:500;color:#333;max-width:700px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.my_topic_history_list>ul>li .my_topic_history_info .info_txt{font-size:14px;font-family:PingFang SC;font-weight:400;color:#666;margin-top:20px;margin-left:10px}.my_topic_history_list>ul>li .my_topic_history_info .info_txt>span{margin-right:40px}