TailwindCSS - 选中单选按钮时更改标签

Question

我看到可以启用 TailwindCSS

checked:

变体以在选中时更改输入元素，但是如何在选中时更改输入的标签？

这里是相关的 Tailwind CSS docs.

下面的示例代码。

在

tailwind.config.js

中启用变体后，将

checked:bg-green-300

放在div或标签中不起作用。它仅适用于输入。

<div>
  <label>
    <input checked type="radio" name="option1" id="option1" className="hidden" />
    <div>option1</div>
  </label>
  <label>
    <input checked type="radio" name="option2" id="option1" className="hidden" />
    <div>option2</div>
  </label>
</div>

Answer 1

编辑：随着2.2+版本的发布，它内置了对称为

peer

的兄弟选择器变体的支持（观看更新release）

此功能仅适用于即时模式。

<label>
    <input checked type="radio" name="option" id="option1" class="hidden peer" />
    <div class="peer-checked:bg-red-600">option1</div>
</label>

对于 2.2 以下的版本： 您需要编写自己的插件来添加新变体。更多信息在这里

比如，我们给它起个名字

label-checked

tailwind.config.js

const plugin = require('tailwindcss/plugin');

module.exports = {
    purge: [],
    darkMode: false, // or 'media' or 'class'
    theme: {},
    variants: {
        extend: {
            backgroundColor: ['label-checked'], // you need add new variant to a property you want to extend
        },
    },
    plugins: [
        plugin(({ addVariant, e }) => {
            addVariant('label-checked', ({ modifySelectors, separator }) => {
                modifySelectors(
                    ({ className }) => {
                        const eClassName = e(`label-checked${separator}${className}`); // escape class
                        const yourSelector = 'input[type="radio"]'; // your input selector. Could be any
                        return `${yourSelector}:checked ~ .${eClassName}`; // ~ - CSS selector for siblings
                    }
                )
            })
        }),
    ],
};

这个配置应该适用于下一个案例（我们扩展了 backgroundColor，所以它应该适用于 bg-color 类）：

1 - label 是包装器，它的文本应该包装在任何选择器中（在本例中为 div）

<label>
    <input checked type="radio" name="option1" id="option1" class="hidden" />
    <div class="label-checked:bg-red-600">option1</div>
</label>

2 - 标签after input

<input checked type="radio" name="option1" id="option1" class="hidden" />
<label for="option-1" class="label-checked:bg-red-600"></label>

DEMO-https://play.tailwindcss.com/SEQ4NRpPV3

Answer 2

根据 tailwind 2.2.0 使用对等类

<input type="checkbox" name="themeToggler" id="themeToggler" class="peer" />
<label for="themeToggler" class="w-10 h-10 bg-gray-400 peer-checked:bg-red-400"></label>

演示

Answer 3

Tailwind 的 peer class 是解决这个问题的现代方法。

您可以通过向 HTML 添加两个类来添加对等行为。

1. 将对等类添加到要观察其状态的 HTML 标记中。
2. 将经过同行检查的类，然后是所需的行为更改，添加到同级元素中。

查看详细示例here

Answer 4

在 Tailwind CSS 3.0 中，您可以像这样创建自定义单选按钮

<div class="p-3 h-screen w-full flex justify-center items-center bg-black">

<div class="w-full">
    <div class="flex">
        <p class="text-[20px] text-white">Which of the following is an asian country?</p>
    </div>
    <div class="md:grid grid-cols-12 gap-3 pb-4 w-full">
        <div className="col-span-6">
         <div class="w-full">
            <input id="default-radio-1" type="radio" value="" name="default-radio" class="peer opacity-0 w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600">
            <label for="default-radio-1" class="flex cursor-pointer  bg-gray-200 justify-center items-center h-10 w-full peer-checked:bg-rose-500 peer-checked:text-white text-[17px] text-sm font-medium text-gray-900 dark:text-gray-300">India</label>
         </div>
        </div>
        <div className="col-span-6">
            <div class="w-full">
            <input id="default-radio-2" type="radio" value="" name="default-radio" class="peer opacity-0 w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600">
            <label for="default-radio-2" class="flex cursor-pointer  bg-gray-200 justify-center items-center h-10 w-full peer-checked:bg-rose-500 peer-checked:text-white text-[17px] text-sm font-medium text-gray-900 dark:text-gray-300">Australia</label>
        </div>
        </div>
        <div className="col-span-6">
            <div class="w-full">
            <input id="default-radio-3" type="radio" value="" name="default-radio" class="peer opacity-0 w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600">
            <label for="default-radio-3" class="flex cursor-pointer  bg-gray-200 justify-center items-center h-10 w-full peer-checked:bg-rose-500 peer-checked:text-white text-[17px] text-sm font-medium text-gray-900 dark:text-gray-300">USA</label>
        </div>
        </div>
        <div className="col-span-6">
            <div class="w-full">
            <input id="default-radio-4" type="radio" value="" name="default-radio" class="peer opacity-0 w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600">
            <label for="default-radio-4" class="flex cursor-pointer bg-gray-200 justify-center items-center h-10 w-full peer-checked:bg-rose-500 peer-checked:text-white text-[17px] text-sm font-medium text-gray-900 dark:text-gray-300">Germany</label>
        </div>
        </div>
    </div>
</div>

检查这个运行示例 - https://bbbootstrap.com/snippets/custom-radio-button-91048657