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What is the use of the “no-js” class in HTML ?
  • Last Updated : 22 Apr, 2020

Purpose:

  • The primary purpose of the no-js class is to allow the use of CSS to style JavaScript-free pages, i.e. defining CSS styles for JavaScript-enabled browsers as well as for JavaScript-disabled browsers.
  • Thus, the “no-js” class will only be present if JavaScript has been disabled. This enables styling a pure HTML and CSS page without the use of any client side-scripting.
  • But if JavaScript is enabled, it removes the “no-js” class automatically.
  • The “no-js” class is available in the markup by default.
  • The “no-js” class is basically a way to be able to style things with or without using JavaScript.
  • The “no-js” class is added to the topmost html element which serves as an instruction for Modernizr.

Syntax:

<!--[if (gt IE 9)|!(IE)]><!--> <html lang="en" class="no-js"> <!--<![endif]-->

Example:




<!DOCTYPE html>
<html class="no-js">
  
<head>
    <script>document.documentElement.className
        = document.documentElement.className
        .replace(/\bno-js\b/g, '') + ' js ';
    </script>
  
    <!-- Other files and libraries
        to be included -->
    <head>
  
    <body>
        <center>
            <h1>GeeksforGeeks</h1>
        </center>
    </body>
  
</html>

Output:

My Personal Notes arrow_drop_up
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