字体大小

​基本用法

¥Basic usage

​设置字体大小

¥Setting the font size

使用 text-* 工具来控制元素的字体大小。

¥Use the text-* utilities to control the font size of an element.

<p class="text-sm ...">The quick brown fox ...</p>
<p class="text-base ...">The quick brown fox ...</p>
<p class="text-lg ...">The quick brown fox ...</p>
<p class="text-xl ...">The quick brown fox ...</p>
<p class="text-2xl ...">The quick brown fox ...</p>

​设置行高

¥Setting the line-height

通过向任何字体大小工具添加行高修饰符，在设置字体大小的同时设置元素的行高。例如，使用 text-xl/8 设置字体大小为 1.25rem，行高为 2rem。

¥Set an element’s line-height at the same time you set the font size by adding a line-height modifier to any font size utility. For example, use text-xl/8 to set a font size of 1.25rem with a line-height of 2rem.

<p class="text-base/6 ...">So I started to walk into the water...</p>
<p class="text-base/7 ...">So I started to walk into the water...</p>
<p class="text-base/loose ...">So I started to walk into the water...</p>

你可以使用 线高比例 中定义的任何值，或者如果你需要偏离你的设计令牌，则可以使用任意值。

¥You can use any value defined in your line-height scale, or use arbitrary values if you need to deviate from your design tokens.

<p class="text-sm/[17px] ..."></p>

​有条件地应用

​悬停、聚焦和其他状态

Tailwind lets you conditionally apply utility classes in different states using variant modifiers. For example, use hover:text-base to only apply the text-base utility on hover.

<p class="text-sm hover:text-base">
  <!-- ... -->
</p>

For a complete list of all available state modifiers, check out the Hover, Focus, & Other States documentation.

​断点和媒体查询

You can also use variant modifiers to target media queries like responsive breakpoints, dark mode, prefers-reduced-motion, and more. For example, use md:text-base to apply the text-base utility at only medium screen sizes and above.

<p class="text-sm md:text-base">
  <!-- ... -->
</p>

To learn more, check out the documentation on Responsive Design, Dark Mode and other media query modifiers.

​使用自定义值

¥Using custom values

​自定义主题

¥Customizing your theme

你可以使用 tailwind.config.js 文件的 theme.fontSize 部分配置你自己的自定义字体大小工具集。

¥You can configure your own custom set of font size utilities using the theme.fontSize section of your tailwind.config.js file.

module.exports = {
  theme: {
    fontSize: {
      sm: '0.8rem',
      base: '1rem',
      xl: '1.25rem',
      '2xl': '1.563rem',
      '3xl': '1.953rem',
      '4xl': '2.441rem',
      '5xl': '3.052rem',
    }
  }
}

在 主题定制 文档中了解有关自定义默认主题的更多信息。

¥Learn more about customizing the default theme in the theme customization documentation.

​提供默认行高

¥Providing a default line-height

Tailwind 的默认主题为每个 font-size 工具配置了合理的默认 line-height。使用自定义字体大小时，你可以通过在 tailwind.config.js 文件中使用 [fontSize, lineHeight] 形式的元组定义每个大小来配置自己的默认行高。

¥Tailwind’s default theme configures a sensible default line-height for each font-size utility. You can configure your own default line heights when using custom font sizes by defining each size using a tuple of the form [fontSize, lineHeight] in your tailwind.config.js file.

/** @type {import('tailwindcss').Config} */
module.exports = {
  theme: {
    fontSize: {
      sm: ['14px', '20px'],
      base: ['16px', '24px'],
      lg: ['20px', '28px'],
      xl: ['24px', '32px'],
    }
  }
}

你还可以使用对象语法指定默认行高，这样你还可以提供默认的 letter-spacing 和 font-weight 值。你可以使用 [fontSize, { lineHeight?, letterSpacing?, fontWeight? }] 形式的元组来完成此操作。

¥You can also specify a default line height using the object syntax, which allows you to also provide default letter-spacing and font-weight values. You can do this using a tuple of the form [fontSize, { lineHeight?, letterSpacing?, fontWeight? }].

/** @type {import('tailwindcss').Config} */
module.exports = {
  theme: {
    fontSize: {
      '2xl': ['1.5rem', {
        lineHeight: '2rem',
        letterSpacing: '-0.01em',
        fontWeight: '500',
      }],
      '3xl': ['1.875rem', {
        lineHeight: '2.25rem',
        letterSpacing: '-0.02em',
        fontWeight: '700',
      }],
    }
  }
}

​任意值

¥Arbitrary values

If you need to use a one-off font-size value that doesn’t make sense to include in your theme, use square brackets to generate a property on the fly using any arbitrary value.

<p class="text-[14px]">
  <!-- ... -->
</p>

Learn more about arbitrary value support in the arbitrary values documentation.