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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

<angle> CSS data type represents an angle value expressed in degrees, gradians, radians, or turns. It is used, for example, in <gradient> s and in some transform 函数。

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

句法

<angle> data type consists of a <number> followed by one of the units listed below. As with all dimensions, there is no space between the unit literal and the number. The angle unit is optional after the number 0 .

Optionally, it may be preceded by a single + or - sign. Positive numbers represent clockwise angles, while negative numbers represent counterclockwise angles. For static properties of a given unit, any angle can be represented by various equivalent values. For example, 90deg equals -270deg ，和 1turn equals 4turn . For dynamic properties, like when applying an animation or transition , the effect will nevertheless be different.

Units

deg

Represents an angle in degrees . One full circle is 360deg . Examples: 0deg , 90deg , 14.23deg .

grad

Represents an angle in gradians . One full circle is 400grad . Examples: 0grad , 100grad , 38.8grad .

rad

Represents an angle in radians . One full circle is 2π radians which approximates to 6.2832rad . 1rad is 180/π degrees. Examples: 0rad , 1.0708rad , 6.2832rad .

turn

Represents an angle in a number of turns. One full circle is 1turn . Examples: 0turn , 0.25turn , 1.2turn .

范例

Setting a clockwise right angle

90deg = 100grad = 0.25turn ≈ 1.5708rad

Setting a flat angle

180deg = 200grad = 0.5turn ≈ 3.1416rad

Setting a counterclockwise right angle

-90deg = -100grad = -0.25turn ≈ -1.5708rad

Setting a null angle

0 = 0deg = 0grad = 0turn = 0rad

规范

规范	状态	注释
CSS Values and Units Module Level 4 The definition of '<angle>' in that specification.	编者草案
CSS Values and Units Module Level 3 The definition of '<angle>' in that specification.	候选推荐	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
<angle>	Chrome 完整支持 2	Edge 完整支持 12	Firefox 完整支持 3.6	IE 完整支持 9	Opera 完整支持 15	Safari 完整支持 4	WebView Android 完整支持 2	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 14	Safari iOS 完整支持 3.2	Samsung Internet Android 完整支持 1.0
deg	Chrome 完整支持 2	Edge 完整支持 12	Firefox 完整支持 3.6	IE 完整支持 9	Opera 完整支持 15	Safari 完整支持 4	WebView Android 完整支持 2	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 14	Safari iOS 完整支持 3.2	Samsung Internet Android 完整支持 1.0
grad	Chrome 完整支持 2	Edge 完整支持 12	Firefox 完整支持 3.6	IE 完整支持 9	Opera 完整支持 15	Safari 完整支持 4	WebView Android 完整支持 2	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 14	Safari iOS 完整支持 3.2	Samsung Internet Android 完整支持 1.0
rad	Chrome 完整支持 2	Edge 完整支持 12	Firefox 完整支持 3.6	IE 完整支持 9	Opera 完整支持 15	Safari 完整支持 4	WebView Android 完整支持 2	Chrome Android 完整支持 18	Firefox Android 完整支持 4	Opera Android 完整支持 14	Safari iOS 完整支持 3.2	Samsung Internet Android 完整支持 1.0
turn	Chrome 完整支持 2	Edge 完整支持 12	Firefox 完整支持 13	IE 完整支持 9	Opera 完整支持 15	Safari 完整支持 4	WebView Android 完整支持 2	Chrome Android 完整支持 18	Firefox Android 完整支持 14	Opera Android 完整支持 14	Safari iOS 完整支持 3.2	Samsung Internet Android 完整支持 1.0

图例

完整支持

完整支持

另请参阅

• CSS data types
• <gradient> type
• CSS rotation transforms: rotate() , rotate3d() , rotateX() , rotateY() ，和 rotateZ()
• CSS transforms
• Using CSS transforms
• Using CSS gradients

元数据

• 最后修改： Aug 10, 2020

相关话题

1. CSS
2. CSS 参考
3. CSS Types
4. 特性

   1. <angle-percentage>
   2. <angle>
   3. <basic-shape>
   4. <blend-mode>
   5. <custom-ident>
   6. <dimension>
   7. <frequency-percentage>
   8. <frequency>
   9. <gradient>
   10. <image>
   11. <integer>
   12. <length-percentage>
   13. <length>
   14. <number>
   15. <percentage>
   16. <ratio>
   17. <resolution>
   18. <shape>
   19. <string>
   20. <time-percentage>
   21. <time>
   22. <transform-function>
   23. <url>
   24. color
   25. flex
   26. ident
   27. position