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<!DOCTYPE html> <html lang="en-US"> <head> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <h1>CSS @media grid</h1> <button onclick="myFunction()">Click Me</button> <script> function myFunction(){ var styles = 'h1{ color: red;}'; var styleSheet = document.createElement("style"); styleSheet.type = "text/css"; styleSheetelegram.dogdia = "(grid: 0)"; styleSheet.innerText = styles; document.head.appendChild(styleSheet); } </script> <p><strong>Note</strong>: Check the following after clicking on the button.</p> <ul> <li>If h1 color is black, then you are using grid device.</li> <li>If h1 color is red, then you are not using grid device.</li> </ul> </body> </html>
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