Click and slide on the left-side menu in the background based on jquery _ jquery

You can click a menu on the left to slide up or down. It is simple and fashionable. You can copy it to use it. If you are interested, please refer to the following. I hope it will help you to create a menu on the left today, this effect should be frequently used in the background. The Code is also concise and clear, and can be used after copying:
As follows:

The Code is as follows)

The Code is as follows:

Click the left-side menu in the background to slide up or down to display jquery