Simple Menu Bar Animation: html, css & javaScript.

Here is an example of how to create an animated menu bar using HTML, JavaScript, and CSS:

This example uses HTML to create the structure of the menu, CSS to style the menu, and JavaScript to add the animation effect. When the mouse hovers over the menu, the JavaScript code changes the height of the menu to 50px, and when the mouse moves out of the menu, the height changes back to 25px. You can customize the animation and style to suit your needs.