Sidebar colors

Change sidebar color by adding class very similar to navbar.

Brand
Brand 
<!-- Source -->
<div class="sidebar sidebar-dark bg-dark sidebar-expand">
  <a class="sidebar-brand" href="#">Brand</a>
  <ul class="sidebar-nav">
    <li class="nav-item"><a class="nav-link" href="#">Nav item 1</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 2</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 3</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 4</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 5</a></li>
  </ul>
</div>
<div class="sidebar sidebar-light bg-light sidebar-expand">
  <a class="sidebar-brand" href="#">Brand</a>
  <ul class="sidebar-nav">
    <li class="nav-item"><a class="nav-link" href="#">Nav item 1</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 2</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 3</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 4</a></li>
    <li class="nav-item"><a class="nav-link" href="#">Nav item 5</a></li>
  </ul>
</div>