html
<!DOCTYPE html>
<html>
<head>
<title>test</title>
<meta charset="UTF-8" />
</head>
<body>
<div id="square"></div>
</body>
</html>
css
* {
margin: 0;
}
body {
display: grid;
grid-template-rows: 100%;
grid-template-columns: 3fr 3fr 3fr;
}
#square {
grid-row: 1;
grid-column: 2;
background-color: red;
width: 100px;
height: 100px;
}
i want the square centered in the middle horizontally
tried justify-self space around but it didnt work