文本不換行

.tag {
          width: 100%;
          font-size: 28rpx;
          color: #383838;
          overflow: hidden;
          word-break: break-all;
          text-overflow: ellipsis;
          display: -webkit-box;
          -webkit-box-orient: vertical
          -webkit-line-clamp: 2;
          white-space: nowrap;
       }