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This article introduces the relevant knowledge of "how to set the adaptive size of background pictures in css". In the operation process of actual cases, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

In CSS, you can use the "background-size" attribute to set the adaptive size of the background image. This attribute is used to set the size of the background image. You only need to add the "background-size:cover;" style to the background image element to make the size of the background image adaptive.

Operating environment of this tutorial: Windows 10 system, CSS3 && HTML5 version, Dell G3 computer.

CSS How to Set Background Image Adaptive Size

In css, you can set the adaptive size of the background picture with the background-size attribute, which specifies the background picture size. When the attribute has a value of cover, the aspect ratio of the image is maintained and the image is scaled to the minimum size that will completely cover the background anchor area.

Below we set the page background picture adaptive to see, the example is as follows:

Documentbody{ background-image:url("1118.02.png") ; background-size:cover;}

Output:

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