I want to show the mobile menu smoothly. Right now I’m using tailwindcss and when I click on the hamburger icon, the menu comes out instantly. I tried adding delay but it isn’t doing anything. How would I make the mobile menu show smoothly when I click on the hamburger menu
<body>
<nav class="flex items-center justify-between flex-wrap bg-teal-500 p-6">
<div class="flex items-center flex-shrink-0 text-white mr-6">
<svg class="fill-current h-8 w-8 mr-2" width="54" height="54" viewBox="0 0 54 54" xmlns="http://www.w3.org/2000/svg"><path d="M13.5 22.1c1.8-7.2 6.3-10.8 13.5-10.8 10.8 0 12.15 8.1 17.55 9.45 3.6.9 6.75-.45 9.45-4.05-1.8 7.2-6.3 10.8-13.5 10.8-10.8 0-12.15-8.1-17.55-9.45-3.6-.9-6.75.45-9.45 4.05zM0 38.3c1.8-7.2 6.3-10.8 13.5-10.8 10.8 0 12.15 8.1 17.55 9.45 3.6.9 6.75-.45 9.45-4.05-1.8 7.2-6.3 10.8-13.5 10.8-10.8 0-12.15-8.1-17.55-9.45-3.6-.9-6.75.45-9.45 4.05z"/></svg>
<span class="font-semibold text-xl tracking-tight">Menu</span>
</div>
<div class="block lg:hidden">
<button class="flex items-center px-3 py-2 border rounded text-teal-200 border-teal-400 hover:text-white hover:border-white" id="show-menu">
<svg class="fill-current h-3 w-3" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M0 3h20v2H0V3zm0 6h20v2H0V9zm0 6h20v2H0v-2z"/></svg>
</button>
</div>
<div class="w-full block flex-grow lg:flex lg:items-center lg:w-auto mobile-menu">
<div class="text-sm lg:flex-grow">
<a href="#responsive-header" class="block mt-4 lg:inline-block lg:mt-0 text-teal-200 hover:text-white mr-4">
Docs
</a>
<a href="#responsive-header" class="block mt-4 lg:inline-block lg:mt-0 text-teal-200 hover:text-white mr-4">
Examples
</a>
<a href="#responsive-header" class="block mt-4 lg:inline-block lg:mt-0 text-teal-200 hover:text-white">
Blog
</a>
</div>
<div>
<a href="#" class="inline-block text-sm px-4 py-2 leading-none border rounded text-white border-white hover:border-transparent hover:text-teal-500 hover:bg-white mt-4 lg:mt-0">Download</a>
</div>
</div>
</nav>
<!-- JavaScript -->
<script src="script.js"></script>
</body>
js
const btn = document.getElementById("show-menu");
const menu = document.querySelector(".mobile-menu");
btn.addEventListener("click", () => {
menu.classList.toggle("hidden");
menu.classList.toggle("transition")
menu.classList.toggle("delay-150")
menu.classList.toggle("duration-300")
});
2
Answers
The solution to your approach
Since you can’t animate element CSS
width
orheight
when it set toauto
. Check out this thread on this problem.overflow-hidden
to yourdiv.mobile-menu
.max-h-0
as the initial height.max-h-0
andmax-h-40
to animate the menu height.Check it out at this Codesandbox
Morden approachs for animating DOM element size
Calculate & save the element default (auto) width or height using:
Remember to set
overflow: hidden;
to clip their content.Then, you can animate them by: