- 入门
- 核心概念
- 定制
- Base Styles
- 布局
- Flexbox & Grid
- Flex Basis
- Flex Direction
- Flex Wrap
- Flex
- Flex Grow
- Flex Shrink
- Order
- Grid Template Columns
- Grid Column Start / End
- Grid Template Rows
- Grid Row Start / End
- Grid Auto Flow
- Grid Auto Columns
- Grid Auto Rows
- Gap
- Justify Content
- Justify Items
- Justify Self
- Align Content
- Align Items
- Align Self
- Place Content
- Place Items
- Place Self
- 间隔
- 尺寸
- 排版
- Font Family
- Font Size
- Font Smoothing
- Font Style
- Font Weight
- Font Variant Numeric
- Letter Spacing
- Line Clamp
- Line Height
- List Style Image
- List Style Position
- List Style Type
- Text Align
- Text Color
- Text Decoration
- Text Decoration Color
- Text Decoration Style
- Text Decoration Thickness
- Text Underline Offset
- Text Transform
- Text Overflow
- Text Wrap
- Text Indent
- Vertical Align
- Whitespace
- Word Break
- Hyphens
- Content
- 背景
- 边框
- Effects
- Filters
- 表格 Tables
- Transitions & Animation
- Transforms
- Interactivity
- SVG
- Accessibility
- 其他
- Install Tailwind CSS using PostCSS
- Framework Guides
- Try Tailwind CSS using the Play CDN
- Install Tailwind CSS with Next.js
- Install Tailwind CSS with Laravel
- Install Tailwind CSS with Vite
- Install Tailwind CSS with Nuxt
- Install Tailwind CSS with Gatsby
- Install Tailwind CSS with SolidJS
- Install Tailwind CSS with SvelteKit
- Install Tailwind CSS with Angular
- Install Tailwind CSS with Ruby on Rails
- Install Tailwind CSS with Remix
- Install Tailwind CSS with Phoenix
- Install Tailwind CSS with Parcel
- Install Tailwind CSS with Symfony
- Install Tailwind CSS with Meteor
- Install Tailwind CSS with Create React App
- Install Tailwind CSS with Adonis
- Install Tailwind CSS With Ember.js
- Install Tailwind CSS with Astro
- Install Tailwind CSS with Qwik
- Install Tailwind CSS with Rspack
Outline Style
Utilities for controlling the style of an element's outline.
Quick reference
Class | Properties |
---|---|
outline-none | outline: 2px solid transparent; outline-offset: 2px; |
outline | outline-style: solid; |
outline-dashed | outline-style: dashed; |
outline-dotted | outline-style: dotted; |
outline-double | outline-style: double; |
Basic usage
Setting the outline style
Use the outline-*
utilities to change the style of an element’s outline.
outline
outline-dashed
outline-dotted
outline-double
<button class="outline outline-2 outline-offset-2 ...">Button A</button>
<button class="outline-dashed outline-2 outline-offset-2 ...">Button B</button>
<button class="outline-dotted outline-2 outline-offset-2 ...">Button C</button>
<button class="outline-double outline-3 outline-offset-2 ...">Button D</button>
Removing outlines
Use outline-none
to hide the default browser outline on focused elements.
It is highly recommended to apply your own focus styling for accessibility when using this utility.
Focus the input to see the expected behaviour
<input type="text"
placeholder="Default focus style"
class="..." />
<input type="text"
placeholder="Custom focus style"
class="focus:outline-none focus:ring focus:border-blue-500 ..." />
The outline-none
utility is implemented using a transparent outline under the hood to ensure elements are still visibly focused to Windows high contrast mode users.
Applying conditionally
Hover, focus, and other states
Tailwind lets you conditionally apply utility classes in different states using variant modifiers. For example, use hover:outline-dashed
to only apply the outline-dashed
utility on hover.
<div class="outline hover:outline-dashed">
<!-- ... -->
</div>
For a complete list of all available state modifiers, check out the Hover, Focus, & Other States documentation.
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:outline-dashed
to apply the outline-dashed
utility at only medium screen sizes and above.
<div class="outline md:outline-dashed">
<!-- ... -->
</div>
To learn more, check out the documentation on Responsive Design, Dark Mode and other media query modifiers.
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