Design a Simple Sidebar using HTML, CSS & JavaScript

In this post we are going to see how we can design a simple sidebar using HTML, CSS and JavaScript. For this, initially we will create a hamburger menu and attach click event which will handle toggle (sidebar show/ hide) feature.

HTML

<div id="sidebar">
  <div class="toggle-btn" onclick="toggleSidebar(this)">
    <span></span>
    <span></span>
    <span></span>
  </div>  
  <div class="list">
    <div class="item">Home</div>
    <div class="item">About us</div>
    <div class="item">Contact us</div>
  </div>
</div>

CSS

* {
  margin:0px;
  padding:0px;
  box-sizing:border-box;
  font-family:sans-serif;
}

#sidebar {
  position:absolute;
  top:0px;
  left:-200px;
  width:200px;
  height:100%;
  background:#151719;
  transition:all 300ms linear;
}
#sidebar.active {
  left:0px;
}
#sidebar .toggle-btn {
  position:absolute;
  left:220px;
  top:10px;
}
#sidebar .toggle-btn span {
  display:block;
  width:30px;
  height:5px;
  background:#151719;
  margin:5px 0px;
  cursor:pointer;
}
#sidebar div.list div.item {
  padding:15px 10px;
  border-bottom:1px solid #444;
  color:#fcfcfc;
  text-transform:uppercase;
  font-size:15px;
}

JS

function toggleSidebar(ref){
  document.getElementById("sidebar").classList.toggle('active');
}