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CSS Function - sin()
The CSS function sin() is a trigonometric operation that calculates the sine of a given number and returns a result in the range -1 to 1.
This function performs a single calculation, interpreting the input as radians, and the output can be either a <number> or an <angle>.
Possible value
The sin(angle) function can take only a single value as a parameter.
angle - A calculation that yields either a <number> or an <angle>. When unitless numbers are used, they are interpreted as radians and represent an <angle>.
Return Value
The sine of any angle always gives a value in the range -1 to 1.
If the angle is infinity, -infinity, or NaN, the result is NaN.
If the angle is 0-, the result is 0-.
Syntax
sin( <calc-sum> )
CSS sin() - Basic Example
In the following example, the .sin-box div's width and height are calculated using the sin() inside the calc() function.
<html> <head> <style> body { display: flex; justify-content: center; align-items: center; height: 200vh; margin: 0; font-size:20px; } .sin-box1 { width: calc(sin(30deg) * 100px); height: calc(sin(30deg) * 100px); background-color: lightblue; margin-right:10px; } .sin-box2 { width: calc(sin(60deg) * 100px); height: calc(sin(60deg) * 100px); background-color: lightgray; margin-right:10px; } .sin-box3 { width: calc(sin(90deg) * 100px); height: calc(sin(90deg) * 100px); background-color: lightgreen; margin-right:10px; } </style> </head> <body> <div class="sin-box1">1</div> <div class="sin-box2">2</div> <div class="sin-box3">3</div> </body> </html>
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