js method to implement a close button that is always displayed on the toolbar at the bottom of the web page_javascript skills

The example in this article describes the js method to implement a close button that is always displayed on the toolbar at the bottom of the web page. Share it with everyone for your reference. The details are as follows:

This is a very practical code. It adds a toolbar to the web page that is always displayed at the bottom of the browser window. You can put announcements, contacts and other information on it. The toolbar of this code also has a close button. , can be closed at any time

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I hope this article will be helpful to everyone’s JavaScript programming design.