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Editor to share with you what is the use of the z-index attribute in CSS, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

The z-index description is as follows.

Z-index:value

Values are entered as integers, with larger values displayed in front.

To use z-index, you must apply a value other than static (initial value) to the element in the position attribute.

When you enter auto, the same value is set as the parent element. If z-index is not specified in the parent element, the value is 0. (initial value)

Let's look at an example in detail.

The code is as follows:

Apply z-index to the following html.

HTML code

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