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In CSS3, rgba() is a new attribute of CSS3. This function is used to generate various colors using the superposition of red, green, blue and transparency. The syntax is "rgba(red, green, blue, alpha)”.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
rgba is a new attribute in css3.
The rgba() function uses the superposition of red (R), green (G), blue (B), and transparency (A) to generate a variety of colors.
RGBA means red, green, blue, transparency (English: Red, Green, Blue, Alpha).
Red (R) An integer between 0 and 255, representing the red component of the color. .
Green (G) An integer between 0 and 255, representing the green component of the color.
Blue (B) An integer between 0 and 255, representing the blue component of the color.
Transparency (A) has a value between 0 and 1, representing transparency.
Supported version: CSS3
The syntax is:
rgba(red, green, blue, alpha)
The example is as follows:
<html>
<head>
<meta charset="utf-8">
<title>123</title>
<style>
#p1 {background-color:rgba(255,0,0,0.3);}
#p2 {background-color:rgba(0,255,0,0.3);}
#p3 {background-color:rgba(0,0,255,0.3);}
#p4 {background-color:rgba(192,192,192,0.3);}
#p5 {background-color:rgba(255,255,0,0.3);}
#p6 {background-color:rgba(255,0,255,0.3);}
</style>
</head>
<body>
<p>RGB 颜色，并使用透明度:</p>
<p id="p1">红色</p>
<p id="p2">绿色</p>
<p id="p3">蓝色</p>
<p id="p4">灰色</p>
<p id="p5">黄色</p>
<p id="p6">樱桃色</p>
</body>
</html>Output result :
(Learning video sharing: css video tutorial)
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