How to Implement the function at the top of the page with a copy of the CSDNBlog? html5 tutorial-

Source: Internet
Author: User
The function of returning to the top of the page with the imitation CSDNBlog has only two changes: the return speed -- changed to slowly returning, and the time when the icon on the top is returned -- changed to displaying as long as it is not on the top, the specific code is as follows. If you are interested, you can refer to the following:
, The returned speed --> is changed to slowly returning. (It turns out to be a flash and returns)
, Return the time when the top icon appears --> changed to show as long as it is not on the top. (It turns out to be displayed after PX scrolling down)

Note: javascript must be written after Html;

The Code is as follows:

Javascript code

The Code is as follows:

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