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css3 color representation methods are: 1. Use the English name of the color to represent it, for example "red" means red; 2. Use hexadecimal notation, for example "#ffff00"; 3. Use rgb() function to represent; 4. Use the hsl() function to represent; 5. Use the rgba() function to represent it; 6. Use the hsla() function to represent it.
The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.
Principle of the three primary colors of color and light
The three primary colors of color and light areRed(Red),Green(Green), Blue (Blue) Three kinds, which can form colorful and brilliant colors.
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Color representation methods supported by CSS3
Example:
<!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html" ;charset="utf-8"> <title>CSS颜色表示</title> <style type="text/css"> div>div{ width: 400px; height: 40px; } </style> </head> <body> <script type="text/javascript"> for (var i = 0; i < 300; i++) { document.write("CSS颜色表示"); } </script> <div style="position:absolute;top:0px"> <div style="background-color:gray;"> background-color:gray </div> <div style="background-color:#ff4314;"> background-color:#888 </div> <div style="background-color:#ffff00;"> background-color:#ffff00 </div> <div style="background-color:rgb(0, 255, 255);"> background-color:rgb(0, 255, 255) </div> <div style="background-color:hsl(120, 100%, 50%);"> background-color:hsl(120, 100%, 50%) </div> <div style="background-color:rgba(0, 255, 255, 0.5);"> background-color:rgba(0, 255, 255, 0.5) </div> <div style="background-color:hsla(120, 100%, 50%, 0.5);"> background-color:hsla(120, 100%, 50%, 0.5) </div> </div> </body> </html>
Webpage display
Explanation
Why Adding text at the end is to verify transparency.
(Learning video sharing: css video tutorial, web front-end)
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