悬停时的 TailWind CSS 下拉菜单
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【中文标题】悬停时的 TailWind CSS 下拉菜单【英文标题】：TailWind CSS Dropdown on hover 【发布时间】：2022-01-09 05:51:00 【问题描述】：我有以下组件：
<div class="p-5">
<div class="flex h-64 justify-center">
<div class="relative ">
<div class="flex flex-row cursor-pointer truncate p-2 px-4 rounded">
<div></div>
<div class="flex flex-row-reverse ml-2 w-full">
<div slot="icon" class="relative">
<div class="absolute text-xs rounded-full -mt-1 -mr-2 px-1 font-bold top-0 right-0 bg-red-700 text-white">3</div>
<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke- stroke-linecap="round" stroke-linejoin="round" class="feather feather-shopping-cart w-6 h-6 mt-2">
<circle cx="9" cy="21" r="1"></circle>
<circle cx="20" cy="21" r="1"></circle>
<path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"></path>
</svg>
</div>
</div>
</div>
<div class="absolute w-full rounded-b border-t-0 z-10">
<div class="shadow-xl w-64">
<div class="p-2 flex bg-white hover:bg-gray-100 cursor-pointer border-b border-gray-100" style="">
<div class="p-2 w-12"><img src="https://dummyimage.com/50x50/bababa/0011ff&text=50x50" ></div>
<div class="flex-auto text-sm w-32">
<div class="font-bold">Product 1</div>
<div class="truncate">Product 1 description</div>
<div class="text-gray-400">Qt: 2</div>
</div>
<div class="flex flex-col w-18 font-medium items-end">
<div class="w-4 h-4 mb-6 hover:bg-red-200 rounded-full cursor-pointer text-red-700">
<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke- stroke-linecap="round" stroke-linejoin="round" class="feather feather-trash-2 ">
<polyline points="3 6 5 6 21 6"></polyline>
<path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
<line x1="10" y1="11" x2="10" y2="17"></line>
<line x1="14" y1="11" x2="14" y2="17"></line>
</svg>
</div>
$12.22</div>
</div>
<div class="p-2 flex bg-white hover:bg-gray-100 cursor-pointer border-b border-gray-100" style="">
<div class="p-2 w-12"><img src="https://dummyimage.com/50x50/bababa/0011ff&text=50x50" ></div>
<div class="flex-auto text-sm w-32">
<div class="font-bold">Product 2</div>
<div class="truncate">Product 2 long description</div>
<div class="text-gray-400">Qt: 2</div>
</div>
<div class="flex flex-col w-18 font-medium items-end">
<div class="w-4 h-4 mb-6 hover:bg-red-200 rounded-full cursor-pointer text-red-700">
<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke- stroke-linecap="round" stroke-linejoin="round" class="feather feather-trash-2 ">
<polyline points="3 6 5 6 21 6"></polyline>
<path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
<line x1="10" y1="11" x2="10" y2="17"></line>
<line x1="14" y1="11" x2="14" y2="17"></line>
</svg>
</div>
$12.22</div>
</div>
<div class="p-2 flex bg-white hover:bg-gray-100 cursor-pointer border-b border-gray-100" style="">
<div class="p-2 w-12"><img src="https://dummyimage.com/50x50/bababa/0011ff&text=50x50" ></div>
<div class="flex-auto text-sm w-32">
<div class="font-bold">Product 3</div>
<div class="truncate">Product 3 description</div>
<div class="text-gray-400">Qt: 2</div>
</div>
<div class="flex flex-col w-18 font-medium items-end">
<div class="w-4 h-4 mb-6 hover:bg-red-200 rounded-full cursor-pointer text-red-700">
<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke- stroke-linecap="round" stroke-linejoin="round" class="feather feather-trash-2 ">
<polyline points="3 6 5 6 21 6"></polyline>
<path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
<line x1="10" y1="11" x2="10" y2="17"></line>
<line x1="14" y1="11" x2="14" y2="17"></line>
</svg>
</div>
$12.22</div>
</div>
<div class="p-4 justify-center flex">
<button class="text-base undefined hover:scale-110 focus:outline-none flex justify-center px-4 py-2 rounded font-bold cursor-pointer
hover:bg-teal-700 hover:text-teal-100
bg-teal-100
text-teal-700
border duration-200 ease-in-out
border-teal-600 transition">Checkout $36.66</button>
</div>
</div>
</div>
</div>
</div>
<div class="h-32"></div>
</div>
看起来像： The Dropdown Component 我正在寻找的效果是下拉菜单首先被隐藏，每次我将鼠标悬停在购物车徽标上时，下拉菜单将在鼠标离开购物车徽标后（悬停完成后）显示 2 秒。
【问题讨论】：
【参考方案1】：将 "group h-0" 类添加到父级
<div class="relative group h-0 ">
这样在它访问子类的帮助下，也使父级的高度为 0px，因为不希望父级在隐藏子级时占据全高，
然后在子div中先隐藏子，然后在父悬停时添加block"hidden group-hover:block" >div
<div class="absolute w-full hidden group-hover:block rounded-b border-t-0 z-10">
希望对你有帮助。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://cdn.tailwindcss.com"></script>
<title>Document</title>
</head>
<body>
<div class="p-5">
<div class="flex h-64 justify-center">
<div class="relative group h-0 ">
<div class="flex flex-row cursor-pointer truncate p-2 px-4 rounded">
<div></div>
<div class="flex flex-row-reverse ml-2 w-full">
<div slot="icon" class="relative">
<div
class="absolute text-xs rounded-full -mt-1 -mr-2 px-1 font-bold top-0 right-0 bg-red-700 text-white">
3</div>
<svg xmlns="http://www.w3.org/2000/svg" fill="none"
viewBox="0 0 24 24" stroke="currentColor" stroke- stroke-linecap="round"
stroke-linejoin="round" class="feather feather-shopping-cart w-6 h-6 mt-2">
<circle cx="9" cy="21" r="1"></circle>
<circle cx="20" cy="21" r="1"></circle>
<path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"></path>
</svg>
</div>
</div>
</div>
<div class="absolute w-full hidden group-hover:block rounded-b border-t-0 z-10">
<div class="shadow-xl w-64">
<div class="p-2 flex bg-white hover:bg-gray-100 cursor-pointer border-b border-gray-100"
style="">
<div class="p-2 w-12"><img src="https://dummyimage.com/50x50/bababa/0011ff&text=50x50"
></div>
<div class="flex-auto text-sm w-32">
<div class="font-bold">Product 1</div>
<div class="truncate">Product 1 description</div>
<div class="text-gray-400">Qt: 2</div>
</div>
<div class="flex flex-col w-18 font-medium items-end">
<div class="w-4 h-4 mb-6 hover:bg-red-200 rounded-full cursor-pointer text-red-700">
<svg xmlns="http://www.w3.org/2000/svg" fill="none"
viewBox="0 0 24 24" stroke="currentColor" stroke-
stroke-linecap="round" stroke-linejoin="round" class="feather feather-trash-2 ">
<polyline points="3 6 5 6 21 6"></polyline>
<path
d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2">
</path>
<line x1="10" y1="11" x2="10" y2="17"></line>
<line x1="14" y1="11" x2="14" y2="17"></line>
</svg>
</div>
$12.22
</div>
</div>
<div class="p-2 flex bg-white hover:bg-gray-100 cursor-pointer border-b border-gray-100"
style="">
<div class="p-2 w-12"><img src="https://dummyimage.com/50x50/bababa/0011ff&text=50x50"
></div>
<div class="flex-auto text-sm w-32">
<div class="font-bold">Product 2</div>
<div class="truncate">Product 2 long description</div>
<div class="text-gray-400">Qt: 2</div>
</div>
<div class="flex flex-col w-18 font-medium items-end">
<div class="w-4 h-4 mb-6 hover:bg-red-200 rounded-full cursor-pointer text-red-700">
<svg xmlns="http://www.w3.org/2000/svg" fill="none"
viewBox="0 0 24 24" stroke="currentColor" stroke-
stroke-linecap="round" stroke-linejoin="round" class="feather feather-trash-2 ">
<polyline points="3 6 5 6 21 6"></polyline>
<path
d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2">
</path>
<line x1="10" y1="11" x2="10" y2="17"></line>
<line x1="14" y1="11" x2="14" y2="17"></line>
</svg>
</div>
$12.22
</div>
</div>
<div class="p-2 flex bg-white hover:bg-gray-100 cursor-pointer border-b border-gray-100"
style="">
<div class="p-2 w-12"><img src="https://dummyimage.com/50x50/bababa/0011ff&text=50x50"
></div>
<div class="flex-auto text-sm w-32">
<div class="font-bold">Product 3</div>
<div class="truncate">Product 3 description</div>
<div class="text-gray-400">Qt: 2</div>
</div>
<div class="flex flex-col w-18 font-medium items-end">
<div class="w-4 h-4 mb-6 hover:bg-red-200 rounded-full cursor-pointer text-red-700">
<svg xmlns="http://www.w3.org/2000/svg" fill="none"
viewBox="0 0 24 24" stroke="currentColor" stroke-
stroke-linecap="round" stroke-linejoin="round" class="feather feather-trash-2 ">
<polyline points="3 6 5 6 21 6"></polyline>
<path
d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2">
</path>
<line x1="10" y1="11" x2="10" y2="17"></line>
<line x1="14" y1="11" x2="14" y2="17"></line>
</svg>
</div>
$12.22
</div>
</div>
<div class="p-4 justify-center flex">
<button class="text-base undefined hover:scale-110 focus:outline-none flex justify-center px-4 py-2 rounded font-bold cursor-pointer
hover:bg-teal-700 hover:text-teal-100
bg-teal-100
text-teal-700
border duration-200 ease-in-out
border-teal-600 transition">Checkout $36.66</button>
</div>
</div>
</div>
</div>
</div>
<div class="h-32"></div>
</div>
</body>
</html>【讨论】：
没有任何解释的代码很少有帮助。 Stack Overflow 是关于学习的，而不是提供 sn-ps 来盲目复制和粘贴。请编辑您的问题并解释它如何回答所提出的具体问题。见How to Answer。以上是关于悬停时的 TailWind CSS 下拉菜单的主要内容，如果未能解决你的问题，请参考以下文章