How to set the background to remain unchanged in css

How to set the background of css to be fixed: first create an HTML sample file; then enter the head tag and css style tag code; then between the style tags, enter the code that defines the background image of the web page; finally set "background -repeat:no-repeat" attribute is enough.

The operating environment of this article: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.

First we open the system notepad program and enter the basic code of the web page

Then enter the head tag and css style tag code

Click between the style tags and enter the code that defines the background image of the web page

body { background-image:url('d:/bg.gif'); }

##Then enter some body tags and content under the body tag

 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 
图像不会随页面滚动。
 

Click the file and save as command, save the content in html format, and open the webpage to preview.

Everyone found that in this situation, when we scroll the mouse wheel, the web page content and background image scroll at the same time. For ease of viewing, we modify the code so that the image does not Displayed repeatedly.

Then preview the effect.

This way you can clearly see the change of the background image. In order to fix the background image, we modify the code to

and see the effect.

[Recommended learning:

css video tutorial]

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