lecture0/column1.html at master · testgug3/lecture0 · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Grid System</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" type="text/css" media="screen" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" />
    <style>
        .row > div{
            padding: 20px;
            background-color: teal;
            border: 2px solid black;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="row">
            <div class="col-lg-3 col-sm-6">
                This a section
            </div>
            <div class="col-lg-3 col-sm-6">
                This a 2nd section
            </div>
            <div class="col-lg-3 col-sm-6">
                This a 3rd section
            </div>
            <div class="col-lg-3 col-sm-6">
                This a 4th section
            </div>
        </div>
    </div>
</body>
</html>