英文:
showing the mobile menu smoothly using tailwindcss
问题
要使移动菜单在单击汉堡菜单时平滑显示，您可以使用Tailwind CSS的过渡效果。在您的JavaScript代码中，您已经尝试添加过渡类，但需要稍作修改。下面是修改后的JavaScript代码：
const btn = document.getElementById("show-menu");
const menu = document.querySelector(".mobile-menu");
btn.addEventListener("click", () => {
menu.classList.toggle("hidden");
setTimeout(() => {
menu.classList.toggle("transition");
menu.classList.toggle("delay-150");
menu.classList.toggle("duration-300");
}, 0);
});
这里使用了setTimeout函数，将过渡类的添加延迟到下一个渲染帧，以确保过渡效果生效。现在，当您点击汉堡菜单时，移动菜单应该会以平滑的方式显示出来。
英文:
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")
});
答案1
得分: 1
以下是翻译好的内容：
您的方法的解决方案
由于在将元素的CSS width 或 height 设置为 auto 时无法进行动画处理。请查看关于这个问题的这个帖子。
- 在您的
div.mobile-menu上添加overflow-hidden。 - 将
max-h-0作为初始高度。 - 切换
max-h-0和max-h-40以动画显示菜单高度。
在这个Codesandbox上查看。
动画DOM元素大小的现代方法
使用以下方法计算并保存元素的默认（自动）宽度或高度：
请记住设置 overflow: hidden; 以剪切它们的内容。
然后，您可以通过以下方法对它们进行动画处理：
- 使用JavaScript将它们的宽度或高度值设置为默认值和0之间。
- 为将要进行动画处理的元素设置CSS Transition。切换它们的宽度或高度在默认值和0之间。
英文:
The solution to your approach
Since you can't animate element CSS width or height when it set to auto. Check out this thread on this problem.
- Added
overflow-hiddento yourdiv.mobile-menu. - Add
max-h-0as the initial height. - Toggle
max-h-0andmax-h-40to 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:
- Use ResizeObserver API.
- Use getBoudingClientRect().
Remember to set overflow: hidden; to clip their content.
Then, you can animate them by:
- Use Javascript to set their width or height value between the default value and 0.
- Set CSS Transition to element that will be animated. Toggle their width or height between the default value and 0.
答案2
得分: 0
.mobile-menu {
transition-property: max-height;
max-height: 0;
overflow: hidden;
}
.mobile-menu.transition-all {
transition-duration: 300ms;
}
const btn = document.getElementById("show-menu");
const menu = document.querySelector(".mobile-menu");
btn.addEventListener("click", () => {
menu.classList.toggle("hidden");
menu.classList.toggle("transition-all");
menu.classList.toggle("duration-300");
});
英文:
.mobile-menu {
transition-property: max-height;
max-height: 0;
overflow: hidden;
}
.mobile-menu.transition-all {
transition-duration: 300ms;
}
const btn = document.getElementById("show-menu");
const menu = document.querySelector(".mobile-menu");
btn.addEventListener("click", () => {
menu.classList.toggle("hidden");
menu.classList.toggle("transition-all");
menu.classList.toggle("duration-300");
});
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