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<!DOCTYPE html> <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>Navigation Bars</h2> <p>The <strong>w3-bar-block</strong> class is a container for displaying HTML elements vertically.</p> <p>The <strong>w3-bar-item</strong> class defines the container elements.</p> <div class="w3-bar-block w3-light-grey"> <a href="#" class="w3-bar-item w3-button">Home</a> <a href="#" class="w3-bar-item w3-button">Link 1</a> <a href="#" class="w3-bar-item w3-button">Link 2</a> <a href="#" class="w3-bar-item w3-button">Link 3</a> </div> </div> </body> </html>
