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This article mainly introduces "the instance usage of the z-index attribute in css". In the daily operation, I believe that many people have doubts about the instance usage of the z-index attribute in css. The editor consulted all kinds of materials and sorted out the simple and easy-to-use operation method. I hope it will be helpful to answer the doubt of "the instance usage of the z-index attribute in css". Next, please follow the editor to study!

Description

1. Boxes may overlap when using positioning layouts.

2. Z-index can be used to control the order of the boxes (z-axis). The value can be a positive integer, a negative integer, or 0. The default auto, the higher the value, the higher the box.

If the attribute value is the same, then follow the writing order.

Units cannot be added after a number.

Only locator boxes have the z-index property.

Example

.parent {position: relative; width: 300px; height: 300px; border: 1px solid # 4c4c4c;} .box1, .box2, .box3 {position: absolute; width: 100px; height: 100px;} .box1 {background-color: hotpink;} .box2 {background-color: khaki;} .box3 {background-color: lightcoral } 1 2 3 at this point, the study of "instance usage of z-index attributes in css" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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