Looking for the best JS translucent floating window code_html/css_WEB-ITnose

Do you have any code to implement the best JS translucent floating window?
When Phoenix is ​​opened, a translucent advertisement covering most of the screen will appear. It will disappear automatically after a while. It can also be closed manually. It is also available on the Youku homepage. As shown in the picture:

Reply to the discussion (solution)

If you look at its source code, you will see the implementation. Have you coded it?

His ad time-based one has cookies. It will be gone if you turn it off, and it will be gone the next day.

Use position:fixed setTimeout

http ://blog.csdn.net/kabulore/article/details/25159287