white-space:nowrap;
overflow:hidden;
text-overflow:ellipsis;word-break: break-all;
text-overflow: ellipsis;
overflow: hidden;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;原文：https://www.cnblogs.com/Waiting-Liang/p/12101200.html