How to make background transparent and text opaque in css?

In CSS, you can use the rgba function to achieve transparent background and opaque text. You only need to set "rgba (value, value, value, value)" for the background of the element; where transparency (A) takes the value 0 Between ~1, it represents transparency. A value of 0 represents completely transparent, and a value of 1 represents completely opaque.

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

Use rgba in css3:

r: red, take a positive integer or percentage;
g: green, take a positive integer or percentage;
b: blue, take a positive Integer or percentage;
a:alpha, take a number between 0 and 1

      
  
 
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