<div class="page-wrapper chiller-theme toggled">
  <a id="show-sidebar" class="btn btn-sm btn-dark" href="#">
    <i class="fas fa-bars"></i>
  </a>
  <nav id="sidebar" class="sidebar-wrapper">
    <div class="sidebar-content">
      <div class="sidebar-brand">
        <a href="#">pro sidebar</a>
        <div id="close-sidebar">
          <i class="fas fa-times"></i>
        </div>
      </div>
      <div class="sidebar-header">
        <div class="user-pic">
          <img class="img-responsive img-rounded" src="https://raw.githubusercontent.com/azouaoui-med/pro-sidebar-template/gh-pages/src/img/user.jpg"
            alt="User picture">
        </div>
        <div class="user-info">
          <span class="user-name">Jhon
            <strong>Smith</strong>
          </span>
          <span class="user-role">Administrator</span>
          <span class="user-status">
            <i class="fa fa-circle"></i>
            <span>Online</span>
          </span>
        </div>
      </div>
      <!-- sidebar-header  -->
      <div class="sidebar-search">
        <div>
          <div class="input-group">
            <input type="text" class="form-control search-menu" placeholder="Search...">
            <div class="input-group-append">
              <span class="input-group-text">
                <i class="fa fa-search" aria-hidden="true"></i>
              </span>
            </div>
          </div>
        </div>
      </div>
      <!-- sidebar-search  -->
      <div class="sidebar-menu">
        <ul>
          <li class="header-menu">
            <span>General</span>
          </li>
          <li class="sidebar-dropdown">
            <a href="#">
              <i class="fa fa-tachometer-alt"></i>
              <span>Dashboard</span>
              <span class="badge badge-pill badge-warning">New</span>
            </a>
            <div class="sidebar-submenu">
              <ul>
                <li>
                  <a href="#">Dashboard 1
                    <span class="badge badge-pill badge-success">Pro</span>
                  </a>
                </li>
                <li>
                  <a href="#">Dashboard 2</a>
                </li>
                <li>
                  <a href="#">Dashboard 3</a>
                </li>
              </ul>
            </div>
          </li>
          <li class="sidebar-dropdown">
            <a href="#">
              <i class="fa fa-shopping-cart"></i>
              <span>E-commerce</span>
              <span class="badge badge-pill badge-danger">3</span>
            </a>
            <div class="sidebar-submenu">
              <ul>
                <li>
                  <a href="#">Products

                  </a>
                </li>
                <li>
                  <a href="#">Orders</a>
                </li>
                <li>
                  <a href="#">Credit cart</a>
                </li>
              </ul>
            </div>
          </li>
          <li class="sidebar-dropdown">
            <a href="#">
              <i class="far fa-gem"></i>
              <span>Components</span>
            </a>
            <div class="sidebar-submenu">
              <ul>
                <li>
                  <a href="#">General</a>
                </li>
                <li>
                  <a href="#">Panels</a>
                </li>
                <li>
                  <a href="#">Tables</a>
                </li>
                <li>
                  <a href="#">Icons</a>
                </li>
                <li>
                  <a href="#">Forms</a>
                </li>
              </ul>
            </div>
          </li>
          <li class="sidebar-dropdown">
            <a href="#">
              <i class="fa fa-chart-line"></i>
              <span>Charts</span>
            </a>
            <div class="sidebar-submenu">
              <ul>
                <li>
                  <a href="#">Pie chart</a>
                </li>
                <li>
                  <a href="#">Line chart</a>
                </li>
                <li>
                  <a href="#">Bar chart</a>
                </li>
                <li>
                  <a href="#">Histogram</a>
                </li>
              </ul>
            </div>
          </li>
          <li class="sidebar-dropdown">
            <a href="#">
              <i class="fa fa-globe"></i>
              <span>Maps</span>
            </a>
            <div class="sidebar-submenu">
              <ul>
                <li>
                  <a href="#">Google maps</a>
                </li>
                <li>
                  <a href="#">Open street map</a>
                </li>
              </ul>
            </div>
          </li>
          <li class="header-menu">
            <span>Extra</span>
          </li>
          <li>
            <a href="#">
              <i class="fa fa-book"></i>
              <span>Documentation</span>
              <span class="badge badge-pill badge-primary">Beta</span>
            </a>
          </li>
          <li>
            <a href="#">
              <i class="fa fa-calendar"></i>
              <span>Calendar</span>
            </a>
          </li>
          <li>
            <a href="#">
              <i class="fa fa-folder"></i>
              <span>Examples</span>
            </a>
          </li>
        </ul>
      </div>
      <!-- sidebar-menu  -->
    </div>
    <!-- sidebar-content  -->
    <div class="sidebar-footer">
      <a href="#">
        <i class="fa fa-bell"></i>
        <span class="badge badge-pill badge-warning notification">3</span>
      </a>
      <a href="#">
        <i class="fa fa-envelope"></i>
        <span class="badge badge-pill badge-success notification">7</span>
      </a>
      <a href="#">
        <i class="fa fa-cog"></i>
        <span class="badge-sonar"></span>
      </a>
      <a href="#">
        <i class="fa fa-power-off"></i>
      </a>
    </div>
  </nav>
  <!-- sidebar-wrapper  -->
  <main class="page-content">
    <div class="container-fluid">
      <h2>Pro Sidebar</h2>
      <hr>
      <div class="row">
        <div class="form-group col-md-12">
          <p>This is a responsive sidebar template with dropdown menu based on bootstrap 4 framework.</p>
          <p> You can find the complete code on <a href="https://github.com/azouaoui-med/pro-sidebar-template" target="_blank">
              Github</a>, it contains more themes and background image option</p>
        </div>
        <div class="form-group col-md-12">
          <iframe src="https://ghbtns.com/github-btn.html?user=azouaoui-med&repo=pro-sidebar-template&type=star&count=true&size=large"
            frameborder="0" scrolling="0" width="140px" height="30px"></iframe>
          <iframe src="https://ghbtns.com/github-btn.html?user=azouaoui-med&repo=pro-sidebar-template&type=fork&count=true&size=large"
            frameborder="0" scrolling="0" width="140px" height="30px"></iframe>
        </div>
      </div>
      <h5>More templates</h5>
      <hr>
      <div class="row">
        <div class="col-xs-12 col-sm-6 col-md-6 col-lg-4">          
          <div class="card rounded-0 p-0 shadow-sm">
            <img src="https://user-images.githubusercontent.com/25878302/58369568-a49b2480-7efc-11e9-9ca9-2be44afacda1.png" class="card-img-top rounded-0" alt="Angular pro sidebar">
            <div class="card-body text-center">
                <h6 class="card-title">Angular Pro Sidebar</h6>
                <a href="https://github.com/azouaoui-med/angular-pro-sidebar" target="_blank" class="btn btn-primary btn-sm">Github</a>
                <a href="https://azouaoui-med.github.io/angular-pro-sidebar/demo/" target="_blank" class="btn btn-success btn-sm">Preview</a>
            </div>
          </div>          
        </div>
                <div class="col-xs-12 col-sm-6 col-md-6 col-lg-4">          
          <div class="card rounded-0 p-0 shadow-sm">
            <img src="https://user-images.githubusercontent.com/25878302/58369258-33f20900-7ef8-11e9-8ff3-b277cb7ed7b4.PNG" class="card-img-top rounded-0" alt="Angular pro sidebar">
            <div class="card-body text-center">
                <h6 class="card-title">Angular Dashboard</h6>
                <a href="https://github.com/azouaoui-med/lightning-admin-angular" target="_blank" class="btn btn-primary btn-sm">Github</a>
                <a href="https://azouaoui-med.github.io/lightning-admin-angular/demo/" target="_blank" class="btn btn-success btn-sm">Preview</a>
            </div>
          </div>          
        </div>
      </div>
    </div>

  </main>
  <!-- page-content" -->
</div>
<!-- page-wrapper -->
@keyframes swing {
  0% {
    transform: rotate(0deg);
  }
  10% {
    transform: rotate(10deg);
  }
  30% {
    transform: rotate(0deg);
  }
  40% {
    transform: rotate(-10deg);
  }
  50% {
    transform: rotate(0deg);
  }
  60% {
    transform: rotate(5deg);
  }
  70% {
    transform: rotate(0deg);
  }
  80% {
    transform: rotate(-5deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

@keyframes sonar {
  0% {
    transform: scale(0.9);
    opacity: 1;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}
body {
  font-size: 0.9rem;
}
.page-wrapper .sidebar-wrapper,
.sidebar-wrapper .sidebar-brand > a,
.sidebar-wrapper .sidebar-dropdown > a:after,
.sidebar-wrapper .sidebar-menu .sidebar-dropdown .sidebar-submenu li a:before,
.sidebar-wrapper ul li a i,
.page-wrapper .page-content,
.sidebar-wrapper .sidebar-search input.search-menu,
.sidebar-wrapper .sidebar-search .input-group-text,
.sidebar-wrapper .sidebar-menu ul li a,
#show-sidebar,
#close-sidebar {
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  -ms-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

/*----------------page-wrapper----------------*/

.page-wrapper {
  height: 100vh;
}

.page-wrapper .theme {
  width: 40px;
  height: 40px;
  display: inline-block;
  border-radius: 4px;
  margin: 2px;
}

.page-wrapper .theme.chiller-theme {
  background: #1e2229;
}

/*----------------toggeled sidebar----------------*/

.page-wrapper.toggled .sidebar-wrapper {
  left: 0px;
}

@media screen and (min-width: 768px) {
  .page-wrapper.toggled .page-content {
    padding-left: 300px;
  }
}
/*----------------show sidebar button----------------*/
#show-sidebar {
  position: fixed;
  left: 0;
  top: 10px;
  border-radius: 0 4px 4px 0px;
  width: 35px;
  transition-delay: 0.3s;
}
.page-wrapper.toggled #show-sidebar {
  left: -40px;
}
/*----------------sidebar-wrapper----------------*/

.sidebar-wrapper {
  width: 260px;
  height: 100%;
  max-height: 100%;
  position: fixed;
  top: 0;
  left: -300px;
  z-index: 999;
}

.sidebar-wrapper ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.sidebar-wrapper a {
  text-decoration: none;
}

/*----------------sidebar-content----------------*/

.sidebar-content {
  max-height: calc(100% - 30px);
  height: calc(100% - 30px);
  overflow-y: auto;
  position: relative;
}

.sidebar-content.desktop {
  overflow-y: hidden;
}

/*--------------------sidebar-brand----------------------*/

.sidebar-wrapper .sidebar-brand {
  padding: 10px 20px;
  display: flex;
  align-items: center;
}

.sidebar-wrapper .sidebar-brand > a {
  text-transform: uppercase;
  font-weight: bold;
  flex-grow: 1;
}

.sidebar-wrapper .sidebar-brand #close-sidebar {
  cursor: pointer;
  font-size: 20px;
}
/*--------------------sidebar-header----------------------*/

.sidebar-wrapper .sidebar-header {
  padding: 20px;
  overflow: hidden;
}

.sidebar-wrapper .sidebar-header .user-pic {
  float: left;
  width: 60px;
  padding: 2px;
  border-radius: 12px;
  margin-right: 15px;
  overflow: hidden;
}

.sidebar-wrapper .sidebar-header .user-pic img {
  object-fit: cover;
  height: 100%;
  width: 100%;
}

.sidebar-wrapper .sidebar-header .user-info {
  float: left;
}

.sidebar-wrapper .sidebar-header .user-info > span {
  display: block;
}

.sidebar-wrapper .sidebar-header .user-info .user-role {
  font-size: 12px;
}

.sidebar-wrapper .sidebar-header .user-info .user-status {
  font-size: 11px;
  margin-top: 4px;
}

.sidebar-wrapper .sidebar-header .user-info .user-status i {
  font-size: 8px;
  margin-right: 4px;
  color: #5cb85c;
}

/*-----------------------sidebar-search------------------------*/

.sidebar-wrapper .sidebar-search > div {
  padding: 10px 20px;
}

/*----------------------sidebar-menu-------------------------*/

.sidebar-wrapper .sidebar-menu {
  padding-bottom: 10px;
}

.sidebar-wrapper .sidebar-menu .header-menu span {
  font-weight: bold;
  font-size: 14px;
  padding: 15px 20px 5px 20px;
  display: inline-block;
}

.sidebar-wrapper .sidebar-menu ul li a {
  display: inline-block;
  width: 100%;
  text-decoration: none;
  position: relative;
  padding: 8px 30px 8px 20px;
}

.sidebar-wrapper .sidebar-menu ul li a i {
  margin-right: 10px;
  font-size: 12px;
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border-radius: 4px;
}

.sidebar-wrapper .sidebar-menu ul li a:hover > i::before {
  display: inline-block;
  animation: swing ease-in-out 0.5s 1 alternate;
}

.sidebar-wrapper .sidebar-menu .sidebar-dropdown > a:after {
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  content: "\f105";
  font-style: normal;
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  background: 0 0;
  position: absolute;
  right: 15px;
  top: 14px;
}

.sidebar-wrapper .sidebar-menu .sidebar-dropdown .sidebar-submenu ul {
  padding: 5px 0;
}

.sidebar-wrapper .sidebar-menu .sidebar-dropdown .sidebar-submenu li {
  padding-left: 25px;
  font-size: 13px;
}

.sidebar-wrapper .sidebar-menu .sidebar-dropdown .sidebar-submenu li a:before {
  content: "\f111";
  font-family: "Font Awesome 5 Free";
  font-weight: 400;
  font-style: normal;
  display: inline-block;
  text-align: center;
  text-decoration: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin-right: 10px;
  font-size: 8px;
}

.sidebar-wrapper .sidebar-menu ul li a span.label,
.sidebar-wrapper .sidebar-menu ul li a span.badge {
  float: right;
  margin-top: 8px;
  margin-left: 5px;
}

.sidebar-wrapper .sidebar-menu .sidebar-dropdown .sidebar-submenu li a .badge,
.sidebar-wrapper .sidebar-menu .sidebar-dropdown .sidebar-submenu li a .label {
  float: right;
  margin-top: 0px;
}

.sidebar-wrapper .sidebar-menu .sidebar-submenu {
  display: none;
}

.sidebar-wrapper .sidebar-menu .sidebar-dropdown.active > a:after {
  transform: rotate(90deg);
  right: 17px;
}

/*--------------------------side-footer------------------------------*/

.sidebar-footer {
  position: absolute;
  width: 100%;
  bottom: 0;
  display: flex;
}

.sidebar-footer > a {
  flex-grow: 1;
  text-align: center;
  height: 30px;
  line-height: 30px;
  position: relative;
}

.sidebar-footer > a .notification {
  position: absolute;
  top: 0;
}

.badge-sonar {
  display: inline-block;
  background: #980303;
  border-radius: 50%;
  height: 8px;
  width: 8px;
  position: absolute;
  top: 0;
}

.badge-sonar:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  border: 2px solid #980303;
  opacity: 0;
  border-radius: 50%;
  width: 100%;
  height: 100%;
  animation: sonar 1.5s infinite;
}

/*--------------------------page-content-----------------------------*/

.page-wrapper .page-content {
  display: inline-block;
  width: 100%;
  padding-left: 0px;
  padding-top: 20px;
}

.page-wrapper .page-content > div {
  padding: 20px 40px;
}

.page-wrapper .page-content {
  overflow-x: hidden;
}

/*------scroll bar---------------------*/

::-webkit-scrollbar {
  width: 5px;
  height: 7px;
}
::-webkit-scrollbar-button {
  width: 0px;
  height: 0px;
}
::-webkit-scrollbar-thumb {
  background: #525965;
  border: 0px none #ffffff;
  border-radius: 0px;
}
::-webkit-scrollbar-thumb:hover {
  background: #525965;
}
::-webkit-scrollbar-thumb:active {
  background: #525965;
}
::-webkit-scrollbar-track {
  background: transparent;
  border: 0px none #ffffff;
  border-radius: 50px;
}
::-webkit-scrollbar-track:hover {
  background: transparent;
}
::-webkit-scrollbar-track:active {
  background: transparent;
}
::-webkit-scrollbar-corner {
  background: transparent;
}


/*-----------------------------chiller-theme-------------------------------------------------*/

.chiller-theme .sidebar-wrapper {
    background: #31353D;
}

.chiller-theme .sidebar-wrapper .sidebar-header,
.chiller-theme .sidebar-wrapper .sidebar-search,
.chiller-theme .sidebar-wrapper .sidebar-menu {
    border-top: 1px solid #3a3f48;
}

.chiller-theme .sidebar-wrapper .sidebar-search input.search-menu,
.chiller-theme .sidebar-wrapper .sidebar-search .input-group-text {
    border-color: transparent;
    box-shadow: none;
}

.chiller-theme .sidebar-wrapper .sidebar-header .user-info .user-role,
.chiller-theme .sidebar-wrapper .sidebar-header .user-info .user-status,
.chiller-theme .sidebar-wrapper .sidebar-search input.search-menu,
.chiller-theme .sidebar-wrapper .sidebar-search .input-group-text,
.chiller-theme .sidebar-wrapper .sidebar-brand>a,
.chiller-theme .sidebar-wrapper .sidebar-menu ul li a,
.chiller-theme .sidebar-footer>a {
    color: #818896;
}

.chiller-theme .sidebar-wrapper .sidebar-menu ul li:hover>a,
.chiller-theme .sidebar-wrapper .sidebar-menu .sidebar-dropdown.active>a,
.chiller-theme .sidebar-wrapper .sidebar-header .user-info,
.chiller-theme .sidebar-wrapper .sidebar-brand>a:hover,
.chiller-theme .sidebar-footer>a:hover i {
    color: #b8bfce;
}

.page-wrapper.chiller-theme.toggled #close-sidebar {
    color: #bdbdbd;
}

.page-wrapper.chiller-theme.toggled #close-sidebar:hover {
    color: #ffffff;
}

.chiller-theme .sidebar-wrapper ul li:hover a i,
.chiller-theme .sidebar-wrapper .sidebar-dropdown .sidebar-submenu li a:hover:before,
.chiller-theme .sidebar-wrapper .sidebar-search input.search-menu:focus+span,
.chiller-theme .sidebar-wrapper .sidebar-menu .sidebar-dropdown.active a i {
    color: #16c7ff;
    text-shadow:0px 0px 10px rgba(22, 199, 255, 0.5);
}

.chiller-theme .sidebar-wrapper .sidebar-menu ul li a i,
.chiller-theme .sidebar-wrapper .sidebar-menu .sidebar-dropdown div,
.chiller-theme .sidebar-wrapper .sidebar-search input.search-menu,
.chiller-theme .sidebar-wrapper .sidebar-search .input-group-text {
    background: #3a3f48;
}

.chiller-theme .sidebar-wrapper .sidebar-menu .header-menu span {
    color: #6c7b88;
}

.chiller-theme .sidebar-footer {
    background: #3a3f48;
    box-shadow: 0px -1px 5px #282c33;
    border-top: 1px solid #464a52;
}

.chiller-theme .sidebar-footer>a:first-child {
    border-left: none;
}

.chiller-theme .sidebar-footer>a:last-child {
    border-right: none;
}
$(".sidebar-dropdown > a").click(function() {
  $(".sidebar-submenu").slideUp(200);
  if (
    $(this)
      .parent()
      .hasClass("active")
  ) {
    $(".sidebar-dropdown").removeClass("active");
    $(this)
      .parent()
      .removeClass("active");
  } else {
    $(".sidebar-dropdown").removeClass("active");
    $(this)
      .next(".sidebar-submenu")
      .slideDown(200);
    $(this)
      .parent()
      .addClass("active");
  }
});

$("#close-sidebar").click(function() {
  $(".page-wrapper").removeClass("toggled");
});
$("#show-sidebar").click(function() {
  $(".page-wrapper").addClass("toggled");
});

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css
  2. https://use.fontawesome.com/releases/v5.0.13/css/all.css

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js
  2. https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/esm/popper.js
  3. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.js