Tailwind CSS class .justify-items-center

    <div class="grid grid-cols-3 gap-4 justify-items-center p-2 bg-gray-200 max-w-md">
        <div class="bg-teal-400 p-4">1</div>
        <div class="bg-teal-400 p-4">2</div>
        <div class="bg-teal-400 p-4">3</div>
        <div class="bg-teal-400 p-4">4</div>
        <div class="bg-teal-400 p-4">5</div>
        <div class="bg-teal-400 p-4">6</div>
    </div>