摘要：
解决代码：_position: absolute; _top: expression(documentElement.scrollTop + 150 + "px");完整代码：kefu{width: 131px; position: fixed; right: 5px; top: 150px; color: #252d69; background: #fff; _position: absolute; _top: expression(documentElement.scrollTop + 150 + "px"); } 阅读全文
