You can use the transition and transform properties to hide and reveal your sidebar. A basic working implementation of that is below, and here's the part that specifically makes it work:
.container.body #main-content-area,
.container.body .sidebar {
/* these two elements will transition over 300ms when transformed */
transition: transform .3s;
}
.nav-md .container.body #main-content-area {
transform: translate(180px);
}
.nav-sm .container.body .sidebar {
/* the sidebar will be hidden by being 180 pixels offscreen */
transform: translate(-180px);
}
The CSS I replaced:
.nav-md .container.body #main-content-area {
margin-left: 180px;
}
.nav-sm .container.body #main-content-area {
margin-left: 0px;
}
.nav-sm .container.body .sidebar {
display: none;
}
And the working demo:
$('.menu-toggle').on('click', function() {
$('body').toggleClass('nav-md nav-sm');
});
.sidebar {
position: absolute;
top: 35px;
right: 0px;
bottom: 0px;
left: 0px;
width: 180px;
background-color: #0071bc;
color: #fff;
height: 100%;
overflow: auto;
font-size: 9pt !important;
white-space: nowrap;
}
.sidebar a {
color: #fff;
}
header.pg-header {
position: fixed;
left: 0px;
top: 0px;
width: 100%;
z-index: 3;
border-bottom: 2px solid #0071bc;
}
header.pg-header .navbar>a.menu-toggle {
color: #0071bc;
cursor: pointer;
}
.container.body #main-content-area,
.container.body .sidebar {
transition: transform .3s;
}
.nav-md .container.body #main-content-area {
transform: translate(180px);
}
.nav-sm .container.body .sidebar {
transform: translate(-180px);
}
body {
background: #fff;
font-family: "Helvetica Neue", Roboto, Arial, "Droid Sans", sans-serif;
font-size: 13px;
font-weight: 400;
line-height: 1.471;
overflow: hidden;
}
body .container.body #main-content-area {
margin-top: 56px;
height: 100%;
overflow: auto;
}
#main-custom-display-zone {
height: calc(100vh - 140px);
overflow: auto;
width: 100%;
position: relative;
}
#main-container-fluid {
padding: 0 5px;
}
ul li {
list-style: none;
}
ul li:after {
content: "A";
white-space: pre;
}
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<title>Single Page App</title>
</head>
<body class="nav-md">
<div class="container body" id="main-page-wrapper">
<div class="sidebar">
<ul>
<li><a><i class="fa fa-globe" aria-hidden="true"></i> System Parameters</a></li>
<li><a><i class="fa fa-globe" aria-hidden="true"></i> Select Schema</a></li>
<li><a><i class="fa fa-globe" aria-hidden="true"></i> Menu Item</a></li>
</ul>
</div>
<header class="pg-header">
<nav class="navbar navbar-expand-sm bg-white p-1">
<a class="menu-toggle ml-2 mr-3"><i class="fa fa-bars"></i></a>
</nav>
</header>
<main class="page-content" id="main-content-area">
<div class="container-fluid">
<div class="alert alert-success text-center" role="alert">
Welcome to SPA!
</div>
</div>
</main>
</div>
</body>
</html>
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