How to Create a Responsive Header Menu with Vanilla JavaScript

📝 Description:
In this quick tutorial, learn how to build a responsive header menu using only HTML, CSS,
and Vanilla JavaScript — no libraries, no frameworks.

✅ One nav element
✅ Auto switches from desktop to mobile view
✅ Simple open/close logic
✅ Perfect for beginners or lightweight sites

📱 When the screen gets small, the nav transforms into a mobile menu.
One clean nav, two buttons (open & close), zero clutter.

🏷️ Hashtags:
#ResponsiveNavbar #JavaScriptMenu #VanillaJS #ResponsiveDesign #WebDevelopment
#MobileMenu #FrontendTips #HTMLCSSJS #LearnToCode #CSSMediaQuery #PureJS
#NavigationMenu #CodingTutorial #WebDesign #NoFrameworks

🌍 Source code:
https://keepsnip.com/source/javascript-responsive-header-menu