I'm using: Tailwindcss, React and Next.js for side projects.
I'm trying to create a responsive navigation bar that displays a hamburger menu when the screen size reaches the "sm" size defined by tailwind.
When I click on the hamburger icon, I want the menu to transition from height 0 to max-h-40.
I feel like I'm missing something trivial in the code below, hopefully others looking at this can see what I'm missing?
navbar.tsx
"use client"; import Image from "next/image"; import Link from "next/link"; import { useState } from "react"; import logo from "../public/finallang_favicon.ico"; export default function Navbar() { const [showMenu, setShowMenu] = useState(false); const toggleMenu = () => { setShowMenu(!showMenu); }; return ( < div > < nav className = "flex items-center justify-between flex-grow w-auto py-3 text-center border-b px-9 sm:w-auto" > < div className = "flex items-center justify-center flex-shrink-0 sm:mr-6" > < Link href = "/" > < Image src = { logo } alt = "Logo" width = { 48 } height = { 48 } /> < /Link> < /div> < div className = "hidden text-sm sm:block" > < Link href = "#" className = "block mt-4 sm:mr-4 text-slate-900 hover:text-slate-700 sm:mt-0 sm:inline-block" > About < /Link> < Link href = "#" className = "block mt-4 sm:mr-4 text-slate-900 hover:text-slate-700 sm:mt-0 sm:inline-block" > Blog < /Link> < Link href = "#" className = "block mt-4 text-slate-900 hover:text-slate-700 sm:mt-0 sm:inline-block" > Contact Me < /Link> < /div> < div > < button className = "hidden px-4 py-2 text-sm leading-none rounded text-slate-100 hover:text-white sm:inline-block bg-brand" > Download < /button> < button onClick = { toggleMenu } aria - label = "Toggle navigation menu" className = "text-gray-400 align-middle sm:hidden hover:text-gray-900 focus:ring-2 rounded-md" > < svg xmlns = "http://www.w3.org/2000/svg" fill = "none" viewBox = "0 0 24 24" strokeWidth = { 2 } stroke = "currentColor" className = "w-6 h-6" > < path strokeLinecap = "round" strokeLinejoin = "round" d = "M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5" / > < /svg> < /button> < /div> < /nav> { showMenu && < div className = { `${showMenu ? "max-h-40" : "h-0"} text-sm text-center sm:hidden transition-all duration-500 ease-in-out overflow-hidden` } > < Link href = "/about" className = "block mt-4 text-slate-900 hover:text-slate-700" > About < /Link> < Link href = "/blog" className = "block mt-4 text-slate-900 hover:text-slate-700" > Blog < /Link> < Link href = "/contact" className = "block mt-4 text-slate-900 hover:text-slate-700" > Contact Me < /Link> < /div> } < /div> ); }
Things I've Tried:
height: "height"
as transitionProperty
to my tailwind.config.jsoverflow-hidden
class name to my menu classtransition-all
and transition-[height]
in the class of the drop-down menuCurrent behavior: GIF of current behavior
What I Expect to Happen:
P粉2168079242024-02-18 10:08:48
Conditional rendering via code snippet:
{showMenu &&Indicates that the element is mounted into the DOM or mounted outside the DOM. The transition does not play on the same frame as the element is mounted/unmounted.
CSS Property Transformation
Also, you can change different CSS properties using the menu container's conditional class:
${showMenu ? "max-h-40" : "h-0"}
max-h-40
corresponds tomax-height: 10rem
andh-0
corresponds toheight: 0
. This means we want to change the initial values of two values:max-height
andheight
. According to MDN, the initial value ofmax-height
isnone
and the initial value ofheight
isauto
< /a>. These values change relative toshowMenu
as follows:
showMenu
true
false
max-height
10rem
none
height
auto
0
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