HTML/CSS - Bootstrap Sidenav Online Editor and JavaScript Compiler

html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Collapsible sidebar using Bootstrap 4</title>
    <!-- Bootstrap CSS CDN -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" />
    <!-- Our Custom CSS -->
    <link rel="stylesheet" href="style.css">
    <!-- Font Awesome JS -->
    <script defer src="https://use.fontawesome.com/releases/v5.0.13/js/solid.js" integrity="sha384-tzzSw1/Vo+0N5UhStP3bvwWPq+uvzCMfrN1fEFe+xBmv1C/AtVX5K0uZtmcHitFZ" crossorigin="anonymous"></script>
    <script defer src="https://use.fontawesome.com/releases/v5.0.13/js/fontawesome.js" integrity="sha384-6OIrr52G08NpOFSZdxxz1xdNSndlD4vdcf/q2myIUVO0VsqaGHJsB0RaBE01VTOY" crossorigin="anonymous"></script>
</head>
<body>
    <div class="wrapper">
        <!-- Sidebar Holder -->
        <nav id="sidebar">
            <div class="sidebar-header">
                <h3>Bootstrap Sidebar</h3>

css

@import "https://fonts.googleapis.com/css?family=Poppins:300,400,500,600,700";
body {
    font-family: 'Poppins', sans-serif;
    background:  #fafafa;
}
p {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1em;
    font-weight: 300;
    line-height: 1.7em;
    color:  #999;
}
a, a:hover, a:focus {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s;
}
.navbar {
    padding: 15px 10px;
    background:  #fff;
    border: none;
    border-radius: 0;

BROWSER

Console