How to Use jQuery to set the background transparency and jquery background transparency

How to Use jQuery to set the background transparency and jquery background transparency

How to Use jQuery to set the background transparency:
You can use CSS to set the transparency of the background. For details, refer to how CSS sets the transparency of the div background and its compatibility is good. However, setting the transparency with CSS does not have a dynamic effect. If it is also difficult to implement, the following describes how to use jQuery to implement background transparency.
The code example is as follows:

<! DOCTYPE html>  
The code above can gradually change the transparency of the div within the specified time.
 
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