JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<header>
    <nav class="navbar navbar-expand-md navbar-dark bg-dark">
        <div class="container">
            <a class="navbar-brand" href="#">Voss.app?</a>
            <button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse">
                <span class="navbar-toggler-icon"></span>
            </button>
            <div class="collapse navbar-collapse">
                <ul class="navbar-nav">
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Kalender</a>
                    </li>
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Restauranter</a>
                    </li>
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Kafe</a>
                    </li>
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Daglegvarer</a>
                    </li>
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Shopping</a>
                    </li>
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Aktivitetar</a>
                    </li>
                    <li class="navbar-item">
                        <a href="#" class="nav-link">Kulturhuset</a>
                    </li>
                </ul>       
            </div>       
        </div>


    </nav>
</header>
<main class="container">
    <h3...

CSS

.tab-content {
    padding: 1rem;
}

@media (min-width: 576px) {
    .card-columns {
        column-count: 1;
    }
}

@media (min-width: 768px) {
    .card-columns {
        column-count: 2;
    }
}

@media (min-width: 992px) {
    .card-columns {
        column-count: 3;
    }
}