Alerts

<div class="container">
    <div class="row">
        <div class="col-12">
            <div class="alert alert-warning">
                <h4 class="alert-heading">Warning!</h4>
                <p class="mb-0">A simple warning alert - check it out!</p>
            </div>
        </div>
        <div class="col-12">
            <div class="alert alert-danger">
                <h4 class="alert-heading">Danger</h4>
                <p class="mb-0">Something broke - fix it!</p>
            </div>
        </div>
        <div class="col-12">
            <div class="alert alert-success">
                <h4 class="alert-heading">Success</h4>
                <p class="mb-0">A simple success alert - good job!</p>
            </div>
        </div>
        <div class="col-12">
            <div class="alert alert-info">
                <h4 class="alert-heading">Info</h4>
                <p class="mb-0">A simple info alert.</p>
            </div>
        </div>
    </div>
</div>