<angle>
Quick Summary for angle#rad
<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 functions.
Code Usage for angle#rad
More Details for angle#rad
<angle>
The <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 functions.
Syntax
The <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, and 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.
Examples
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 |
Specifications
| Specification |
|---|
| CSS Values and Units Module Level 5 # angles |
See also
CSS data types The<gradient> type CSS rotation transforms: rotate(), rotate3d(), rotateX(), rotateY(), and rotateZ() CSS transforms Using CSS transforms Using CSS gradients Last modified: Aug 12, 2021, by MDN contributors
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