<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="style.css"/>
</head>
<body>

<!-- 💛 -->
<div class="container"></div>


</body>
</html>
/* 💛 */

.container{
    display:grid;
    /* 3 rows and 2 columns */
    grid-template-rows: 100px 100px 100px;
    grid-template-columns: 100px 100px;
    border: 3px solid lightgray;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.