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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style> img { -webkit-filter: grayscale(100%); /* Safari 6.0 - 9.0 */ filter: grayscale(100%); } </style> </head> <body> <p>Convert the image to grayscale:</p> <img src="pineapple.jpg" alt="Pineapple" width="300" height="300"> <p><strong>Note:</strong> The filter property is not supported in Internet Explorer, Edge 12, or Safari 5.1 and earlier.</p> </body> </html>