hello world
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<!DOCTYPR html> <html lang="en"> <head> <meta charset="UTF-8"> <title>BootStrap</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"> <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-9ndCyUaIbzAi2FUVXJi0CjmCapSmO7SnpJef0486qhLnuZ2cdeRhO02iuK6FUUVM" crossorigin="anonymous"> <link rel="stylesheet" href="style.css"> <style> .container, .container-lg{ border:1px solid black; } .row{ border:0px solid blue; } </style> </head> <body> <div class="container-lg"> hello world </div> </body> </html>