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<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap 4 Nested Grid Columns</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" crossorigin="anonymous"> <script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" crossorigin="anonymous"></script> <style> body{ padding:15px; } .level1{ background: #eaeaea; border: 1px solid #cecece; padding-top: 10px; padding-bottom: 10px; } .level2{ background: #b5b5b5; border: 1px solid #848282; padding-top: 10px; padding-bottom: 10px; } </style> </head> <body> <h2 class="text-center">Bootstrap 4 Nested Grid Columns</h2> <div class="container"> <div class="row"> <div class="col-md-4 level1"> <div class="mybg">1st Level col-md-4</div> </div> <div class="col-md-8 level1"> <div class="mybg">1st Level col-md-8</div> <div class="row"> <div class="col-md-6 level2"> <div class="mybg">2nd Level col-md-6</div> </div> <div class="col-md-6 level2"> <div class="mybg">2nd Level col-md-6</div> </div> </div> </div> </div> </div> </body> </html>
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