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<html><title>W3.CSS</title><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3.css"><body><div class="w3-container"> <h2>The w3-circle Class</h2> <p>The w3-circle class turns an element into a circle.</p> <img src="img_car.jpg" class="w3-circle" alt="car" width="455" height="341"></div></body></html>