Ring Offset Color 轮廓偏移颜色

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Basic usage

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Setting the ring offset color

Use the ring-offset-{color} utilities to change the color of a ring offset. Usually this is done to try and match the offset to the parent background color, since true box-shadow offsets aren’t actually possible in CSS.

<button class="ring-2 ring-purple-500 ring-offset-4 ring-offset-purple-100 ...">
  Save Changes
</button>

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Changing the opacity

Control the opacity of an element’s ring offset color using the color opacity modifier.

<button class="ring-2 ring-purple-500 ring-offset-4 ring-offset-purple-100/50"></button>

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

<button class="ring-2 ring-purple-500 ring-offset-4 ring-offset-purple-100/[.55]"></button>

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Applying conditionally

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Hover, focus, and other states

Tailwind lets you conditionally apply utility classes in different states using variant modifiers. For example, use hover:ring-offset-blue-500 to only apply the ring-offset-blue-500 utility on hover.

<div class="ring-2 ring-offset-2 ring-offset-blue-300 hover:ring-offset-blue-500">
  <!-- ... -->
</div>

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

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Breakpoints and media queries

You can also use variant modifiers to target media queries like responsive breakpoints, dark mode, prefers-reduced-motion, and more. For example, use md:ring-offset-blue-500 to apply the ring-offset-blue-500 utility at only medium screen sizes and above.

<div class="ring-2 ring-offset-2 ring-offset-blue-300 md:ring-offset-blue-500">
  <!-- ... -->
</div>

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

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Using custom values

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Customizing your theme

By default, Tailwind makes the entire default color palette available as ring offset color colors. You can customize your color palette by editing theme.colors or theme.extend.colors in your tailwind.config.js file.

module.exports = {  theme: {    extend: {      colors: {        'regal-blue': '#243c5a',      },    }  }}

Alternatively, you can customize just your ring offset color colors by editing theme.ringOffsetColor or theme.extend.ringOffsetColor in your tailwind.config.js file.

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

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Arbitrary values

If you need to use a one-off ring-offset-{color} 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.

<div class="ring-offset-[#50d71e]">
  <!-- ... -->
</div>

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