web/html_css/basic_templates/layout/cssgrid2.html at master · Math-O5/web · GitHub

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<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>CSS Grid #02</title>
    <style>
        html,
        body {
            margin: 20px;
            height: calc(100% - 40px);
            background-color: lightgray;
        }

        div {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            border: solid 5px dodgerblue;
            background: #fff;
        }

        body {
            display: grid;
            grid-template-columns:
            [inicio] 1fr
            [metade-1 meio-1] 1fr
            [metade-2 meio-2] 1fr [fim];
            grid-template-rows: repeat(3, fr);
        }

        .d1 {
            grid-column-start: metade-2;
            grid-column-end: fim
        }
    </style>
</head>

<body>
    <div class="d1">1</div>
    <div class="d2">2</div>
    <div class="d3">3</div>
</body>

</html>