How to set the div translucent effect in CSS, CSS div translucent

How to set the div translucent effect in CSS, CSS div translucent

How to set the div translucent effect in CSS:
Setting the transparency of an element is used in many applications. The following describes how to set an element to translucent. Other transparent effects can be expanded by yourself.
The code example is as follows:

 

<! DOCTYPE html>  
 
 
The opacity attribute is supported by standard browsers, but IE8 and IE8 do not support this attribute, so filter: alpha (opacity = 50) is used for compatibility, the opacity value is 0-1, but the value in the filter is 0-100. For more information about opacity attributes, see the opacity attributes section of CSS.
 
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