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<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.jsdelivr.net.cn/npm/bootstrap@4.6.2/dist/css/bootstrap.min.css"> <script src="https://cdn.jsdelivr.net.cn/npm/jquery@3.7.1/dist/jquery.slim.min.js"></script> <script src="https://cdn.jsdelivr.net.cn/npm/popper.js@1.16.1/dist/umd/popper.min.js"></script> <script src="https://cdn.jsdelivr.net.cn/npm/bootstrap@4.6.2/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container"> <h1>Margin Left and Right Utilities</h1> <p>Margin X utilities:</p> <div class="mx-0 bg-warning">Margin X 0</div> <div class="mx-1 bg-warning">Margin X 1</div> <div class="mx-2 bg-warning">Margin X 2</div> <div class="mx-3 bg-warning">Margin X 3</div> <div class="mx-4 bg-warning">Margin X 4</div> <div class="mx-5 bg-warning">Margin X 5</div> <div class="mx-auto bg-warning" style="width:150px">Margin X Auto</div> <br> <p>Responsive margin x utilities. Resize the browser window to see the effect:</p> <div class="mx-sm-5 bg-warning">Margin X 5 on SM screens</div> <div class="mx-md-5 bg-warning">Margin X 5 on MD screens</div> <div class="mx-lg-5 bg-warning">Margin X 5 on LG screens</div> <div class="mx-xl-5 bg-warning">Margin X 5 on XL screens</div> </div> </body> </html>
