.feedback-box{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-pack:distribute;justify-content:space-around}.feedback-box .feedback-half-box{width:390px;height:750px}.feedback-box .feedback-half-box .tree-border{padding:5px;height:400px;background:#fff}.feedback-box .feedback-half-box .tree-border .tree{max-height:400px;overflow:auto;width:393px}.feedback-box .feedback-half-box .user-box{border:1px solid #ebeef5;border-radius:5px;margin:10px 0;padding:10px;height:240px;overflow:auto}