javascript 如何实现浮动和可拖动面板
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How to implement a floating and drag-able panel
提问by sams5817
I wanted to implement a floating and drag-able panel, where all the html and css is place inside a div tag, then use JavaScript to trigger the drag-able effect.
我想实现一个浮动和可拖动面板，其中所有的 html 和 css 都放在一个 div 标签内，然后使用 JavaScript 来触发可拖动效果。
Here is the similar references I found of, but I looking for better approach.
这是我发现的类似参考资料，但我正在寻找更好的方法。
http://www.quackit.com/css/codes/css_floating_menu.cfm
http://www.quackit.com/css/codes/css_floating_menu.cfm
http://www.fiendish.demon.co.uk/html/javascript/layerfloat.html
http://www.fiendish.demon.co.uk/html/javascript/layerfloat.html
any suggestions or advises are welcome, thank you in advanced.
欢迎任何建议或建议，先谢谢你。
