JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
</head>
<body>

<div class="container">
    <div class="container social-bar-top">
        <img src="assets/images/phone-icon.png" alt="Phone Icon">
        <a class="social-bar-padding text-white">phone here</a>
        <img src="assets/images/mail-icon.png" alt="Email icon">
        <a class="social-bar-padding text-white">email here</a>
        <img src="assets/images/facebook-icon.png" alt="Facebook Icon">
        <img src="assets/images/twitter-icon.png" alt="Facebook Icon">
    </div>
<nav class="navbar navbar-expand-lg navbar-dark">
    <div class="container">
        <a class="navbar-brand nav-logo-margin" href="#">
            <img src="assets/images/dbs-logo.png" width="180" height="auto" alt="">
        </a>
        <button class="navbar-toggler" type="button"  data-target="#navbarSupportedContent" data-toggle="collapse" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
button
        </button>
        <div class="collapse navbar-collapse" id="navbarSupportedContent">
            <ul class="navbar-nav mr-auto">
                <li class="nav-item active">
                    <a class="nav-link uppercase" href="#">Home</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link uppercase" href="#">About Us</a>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link ...

CSS

.navbar {
    background: red;
}