Building a Collapsible Sidebar with JavaScript

A comprehensive guide to creating an engaging collapsible sidebar with a hamburger icon using HTML, CSS, and JavaScript

Introduction

In this tutorial, we will walk you through the process of building a basic sidebar that opens and collapses when the hamburger icon is clicked.

Here is a preview of what we’re building:

Step 1: Setting up the HTML structure

First we begin by creating the HTML structure for the sidebar. We’ll use a <div> container to hold the sidebar elements and a <button> for the hamburger icon.

<div class="sidebar">
  <button class="hamburger">&#9776;</button>
  <ul class="menu">
    <li><a href="#">Home</a></li>
    <li><a href="#">About</a></li>
    <li><a href="#">Portfolio</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</div>

Step 2: Styling the sidebar with CSS