Untitled

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Title</title>
</head>
<body>
<div style="display: flex; flex-wrap: wrap;">
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
    <div style="background-color: black; height: 100px; margin: 5px; width: 50px;"></div>
</div>
</body>
</html>