JS to achieve three layers of overlapping click to switch between the method _javascript skills

The example of this article tells JS to achieve three layers of overlapping click to switch between the two methods. Share to everyone for your reference. Specifically as follows:

This effect implements three or more overlapping layers, according to a certain rule overlap, when you click on any layer with the mouse, the layer is displayed in the top, multiple layers alternately switch, code simple, while learning CSS is a good reference example, the function of this example requires JavaScript code to match.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-3ccd-tab-click-cha-style-codes/

The specific code is as follows:

The

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