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<html><head><style> #grad1 { height: 200px; background-color: #cccccc; background-image: radial-gradient(red, yellow, green);}</style></head><body><h2>Radial Gradient as Background Image</h2><p>This radial gradient starts in the center. It starts red, transitioning to yellow, then to green:</p><div id="grad1"></div></body></html>