CSS atan() Function
Example
Use atan() to rotate elements:
div.a {
transform: rotate(atan(500));
}
div.b {
transform: rotate(atan(1));
}
div.c {
transform: rotate(atan(0));
}
div.d {
transform: rotate(atan(-5000));
}
Try it Yourself »
Definition and Usage
The CSS atan() function returns the inverse tangent of a number between -∞ and ∞.
The inverse tangent of a number returns an angle between -90 and 90 degrees.
Some examples:
- atan(-1) represents -45 degrees
- atan(0) represents 0 degrees
- atan(1) represents 45 degrees
- atan(-infinity) represents -90 degrees
- atan(infinity) represents 90 degrees
| Version: | CSS4 |
|---|
Browser Support
The numbers in the table specify the first browser version that fully supports the function.
| Function | |||||
|---|---|---|---|---|---|
| atan() | 111 | 111 | 108 | 15.4 | 97 |
CSS Syntax
atan(number)
| Value | Description |
|---|---|
| number | Required. A number between -∞ and ∞ |
Related Pages
CSS reference: CSS acos() function.
CSS reference: CSS asin() function.
CSS reference: CSS atan2() function.
CSS reference: CSS calc() function.
CSS reference: CSS cos() function.
