How to realize the dynamic centering of css relative to the browser and keeping it in the center of the screen forever

This article focuses on "how to achieve the dynamic center of css relative to the browser and always stay in the middle of the screen", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to keep css in the center of the screen forever relative to the browser's dynamic center".

Use the following css to keep the div in the center of the screen forever

The code is as follows:

.log {

Position:absolute; / * absolute positioning * /

Top:50%; / * 50% distance from the top

Left:50%

Margin:-100px 00-150px; / * set the negative value of the margin-top of this div to half of its height, and the value of margin-left to the negative value of half of its width. (feels like a tongue twister) * /

If the width of width:300px; / * is 400, then margin-top is-200px*/

If the height:200px; / * is 200, then the margin-left is-100px.

ZMui indexRu 99; / * floats on the top * /

}

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