想问一下，网页中的这种效果怎么做出来_html/css_WEB-ITnose
想问一下，网页中的这种效果怎么做出来
回复讨论(解决方案)
这个框应该设置为空或是隐藏起来了，调用的时候才设置document.getElementsByTagName('body')[0].style.overflow = 'hidden';并填入内容或设置框为可见。
动态创建一个div 在这个div里在创建文本框啊 按钮啊之类的 最后append到body上试试
你这个问题牵涉到
document操作
样式的设置
js的代码
简单的说就是 一个div absolute在页面的指定位置上 可以是动态建立 也可以是预先有的但是隐藏着
最后，因为框里面内容是登录，还涉及ajax
但是他那个框为什么能够挪动呢？
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