I'm using Bootstrap 5 to design my template, and I'm facing an issue: When I press the button "Menu" `
, not all of the sidebar fades(i'm trying horizontal collapsing plugin and i want the sidebar collapse when i press menu button ), and I have this dark space, as shown in this picture 
. How can I fix it? this is my code
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.1/font/bootstrap-icons.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<div class="container-fluid">
<div class="row flex-nowrap">
<div class="col-auto col-md-3 col-xl-2 px-sm-2 px-0 bg-dark">
<div class="collapse collapse-horizontal" id="collapseWidthExample">
<div class="d-flex flex-column align-items-center align-items-sm-start px-3 pt-2 text-white min-vh-100">
<a href="/" class="d-flex align-items-center pb-3 mb-md-0 me-md-auto text-white text-decoration-none">
<span class="fs-5 d-none d-sm-inline">Menu</span>
</a>
<ul class="nav nav-pills flex-column mb-sm-auto mb-0 align-items-center align-items-sm-start" id="menu">
<li class="nav-item">
<a href="#" class="nav-link align-middle px-0">
<i class="fs-4 bi-house"></i> <span class="ms-1 d-none d-sm-inline">Home</span>
</a>
</li>
<li>
<a href="#submenu1" data-bs-toggle="collapse" class="nav-link px-0 align-middle">
<i class="fs-4 bi-speedometer2"></i> <span class="ms-1 d-none d-sm-inline">Dashboard</span> </a>
<ul class="collapse show nav flex-column ms-1" id="submenu1" data-bs-parent="#menu">
<li class="w-100">
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Item</span> 1 </a>
</li>
<li>
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Item</span> 2 </a>
</li>
</ul>
</li>
<li>
<a href="#" class="nav-link px-0 align-middle">
<i class="fs-4 bi-table"></i> <span class="ms-1 d-none d-sm-inline">Orders</span></a>
</li>
<li>
<a href="#submenu2" data-bs-toggle="collapse" class="nav-link px-0 align-middle ">
<i class="fs-4 bi-bootstrap"></i> <span class="ms-1 d-none d-sm-inline">Bootstrap</span></a>
<ul class="collapse nav flex-column ms-1" id="submenu2" data-bs-parent="#menu">
<li class="w-100">
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Item</span> 1</a>
</li>
<li>
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Item</span> 2</a>
</li>
</ul>
</li>
<li>
<a href="#submenu3" data-bs-toggle="collapse" class="nav-link px-0 align-middle">
<i class="fs-4 bi-grid"></i> <span class="ms-1 d-none d-sm-inline">Products</span> </a>
<ul class="collapse nav flex-column ms-1" id="submenu3" data-bs-parent="#menu">
<li class="w-100">
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Product</span> 1</a>
</li>
<li>
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Product</span> 2</a>
</li>
<li>
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Product</span> 3</a>
</li>
<li>
<a href="#" class="nav-link px-0"> <span class="d-none d-sm-inline">Product</span> 4</a>
</li>
</ul>
</li>
<li>
<a href="#" class="nav-link px-0 align-middle">
<i class="fs-4 bi-people"></i> <span class="ms-1 d-none d-sm-inline">Customers</span> </a>
</li>
</ul>
<hr>
<div class="dropdown pb-4">
<a href="#" class="d-flex align-items-center text-white text-decoration-none dropdown-toggle" id="dropdownUser1" data-bs-toggle="dropdown" aria-expanded="false">
<img src="https://github.com/mdo.png" alt="hugenerd" width="30" height="30" class="rounded-circle">
<span class="d-none d-sm-inline mx-1">loser</span>
</a>
<ul class="dropdown-menu dropdown-menu-dark text-small shadow" aria-labelledby="dropdownUser1">
<li><a class="dropdown-item" href="#">New project...</a></li>
<li><a class="dropdown-item" href="#">Settings</a></li>
<li><a class="dropdown-item" href="#">Profile</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Sign out</a></li>
</ul>
</div>
</div>
</div>
</div>
<div class="col py-3">
<button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target="#collapseWidthExample" aria-expanded="false" aria-controls="collapseWidthExample">
Menu
</button>
<h3>Left Sidebar with Submenus</h3>
<p class="lead">
An example 2-level sidebar with collasible menu items. The menu functions like an "accordion" where only a single
menu is be open at a time. While the sidebar itself is not toggle-able, it does responsively shrink in width on smaller screens.</p>
<ul class="list-unstyled">
<li><h5>Responsive</h5> shrinks in width, hides text labels and collapses to icons only on mobile</li>
</ul>
</div>
</div>
</div>
</body>
</html>
#
I tried several solutions, but none of them worked