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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>CSS variable - example 1</title> <style> :root { --my-color: red; } .para { color: var(--my-color); } </style> </head> <body> <h1>Understanding CSS variables.</h1> <p class="para">This paragraph is using the CSS variable.</p> </body> </html>
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