index.php

<!DOCTYPE html>

<html>
    <head>
        <title>Honey Store</title>
        <meta charset="utf-8">

        <!-- Latest compiled and minified CSS -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

        <!-- Optional theme -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">

       <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.8/css/solid.css" integrity="sha384-v2Tw72dyUXeU3y4aM2Y0tBJQkGfplr39mxZqlTBDUZAb9BGoC40+rdFCG0m10lXk" crossorigin="anonymous">

        <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.8/css/fontawesome.css" integrity="sha384-q3jl8XQu1OpdLgGFvNRnPdj5VIlCvgsDQTQB6owSOHWlAurxul7f+JpUOVdAiJ5P" crossorigin="anonymous">

        <link rel="stylesheet" href="main.css">
    </head>

    <body>
        <header class="container-fluid">
            <div class="row">
                <div class="navbar navbar-inverse navbar-static-top">
                    <div class="container">
                        <!-- Логотип -->
                        <div class="navbar-header">
                            <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#responsive-menu">
                                <i class="fa fa-bars" aria-hidden="true" style="color: cornflowerblue;"></i>
                            </button>

                            <a class="navbar-brand" href="/">Honey Store</a>
                        </div>

                        <!-- Меню сайта -->
                        <div class="collapse navbar-collapse" id="responsive-menu">
                            <ul class="nav navbar-nav">
                                <li><a href="/">Информация о товарах</a></li>
                                <li><a href="/">Сделать заказ</a></li>
                                <li><a href="/">Информация о проекте</a></li>
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
        </header>

        <div class="container">
            <div class="row">
                <?php
                    require "lib.php";

                    echo getContent();
                ?>
            </div>
        </div>

        <footer class="container-fluid">
            <div class="row">
                <div class="container-fluid">
                    <!-- Информация об авторе -->
                    <div class="col-xs-6">
                        <p class="text-muted pull-left">© 2018 Винни-Пух</p>
                    </div>
                </div>
            </div>
        </footer>

        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
    </body>
</html>