How to create a fixed side navigation menu with CSS?

Following is the code to create a fixed side navigation menu using CSS −


 Live Demo

<!DOCTYPE html>
<html lang="en" >
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
body {
   margin: 0px;
   margin-top: 10px;
   padding: 0px;
nav {
   height: 100vh;
   width: 200px;
   position: fixed;
   z-index: 1;
   top: 0;
   left: 0;
   background-color: rgb(39, 39, 39);
   overflow: auto;
   height: 100%;
.links {
   display: block;
   text-align: center;
   padding: 14px;
   color: rgb(178, 137, 253);
   text-decoration: none;
   font-size: 17px;
.links:hover {
   background-color: rgb(100, 100, 100);
input[type="text"] {
   float: right;
   padding: 6px;
   margin-top: 8px;
   margin-right: 8px;
   font-size: 17px;
.selected {
   background-color: rgb(0, 18, 43);
<a class="links selected" href="#"> Home</a>
<a class="links" href="#"> Login </a>
<a class="links" href="#">Register</a>
<a class="links" href="#">Contact Us</a>
<a class="links" href="#">More Info</a>


This will produce the following output −