JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.4.1.slim.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
<nav class="navbar navbar-dark navbar-expand fixed-bottom bg-dark justify-content-center">
    <div class="container-fluid">
        <ul class="navbar-nav nav-justified w-100 text-center">
            <li class="nav-item">
                <a class="nav-link d-flex flex-column" href="" Match="NavLinkMatch.All">
                    <i class="bi bi-house-fill" aria-hidden="true"></i>
                    <span>Home</span>
                </a>
            </li>
            <li class="nav-item">
                <a class="nav-link d-flex flex-column" href="book">
                    <i class="bi bi-calendar-check-fill" aria-hidden="true"></i>
                    <span>Book</span>
                </a>
            </li>
            <li class="nav-item">
                <a class="nav-link d-flex flex-column" href="profile">
                    <i class="bi bi-person-fill" aria-hidden="true"></i>
                    <span>Profile</span>
                </a>
            </li>
            <li class="nav-item">
                <a class="nav-link d-flex flex-column" href="settings">
                    <i class="bi bi-gear-fill" aria-hidden="true"></i>
                    <span>Settings</span>
                </a>
            </li>
        </ul>
    </div>
</nav>

CSS

.row {
  background: #f8f9fa;
  margin-top: 20px;
}

.col {
  border: solid 1px #6c757d;
  padding: 10px;
}