CSS types.tan() Function

The CSS tan() function returns the tangent of a specified angle in radians. In other words, it returns the ratio of the length of the opposite side to the length of the adjacent side in a right triangle. The value of the tangent will range between −infinity and infinity.

Syntax of CSS type tan():

/* angle values */
width: calc(100px * tan(30deg));
width: calc(100px * tan(0.25turn));
width: calc(100px * tan(0.398163rad));

/* number values */
width: calc(100px * tan(0.73502));
width: calc(100px * tan(2.732 – 1));

/* Other values */
width: calc(100px * tan(pi / 4));
width: calc(100px * tan(e / 2));

Parameter: The function takes one parameter:

• angle: A angle value representing the angle in radians for which the tangent should be calculated.

Return value: The return value of the tan() function is a <number> value, representing the tangent of the specified angle.

Example 1: This example illustrates setting the skewness based on the tan value.

Output:

Example 2: This example illustrates the use of the tan() function to set the left of the element.

Output:

Supported browsers: The browsers supported by the tan() function are listed below:

• Firefox 16.0
• Safari 15.4