摘要: 示例1: .div1{ width:200px; height:300px; border:1px solid #000; position: relative; } .div2{ width: 40px; height:40px; background:green; position: absol 阅读全文
posted @ 2016-09-02 08:21 mxk 阅读(173) 评论(0) 推荐(0) 编辑