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<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>.container { background-color: red; color: white; aspect-ratio: 3 / 2;}</style></head><body><h2>Maintain Aspect Ratio 3:2</h2><p>Resize the window to see the effect.</p><div class="container"> <p>3:2 Aspect ratio</p> </div></body></html>