The pow() CSS function is an exponential function that returns the value of a base raised to the power of a number.
The exp() function is a special case of pow() where the value of the base is the mathematical constant e.
Syntax
/* A <number> value */ width: calc(10px * pow(5, 2)); /* 10px * 25 = 250px */ width: calc(10px * pow(5, 3)); /* 10px * 125 = 1250px */ width: calc(10px * pow(2, 10)); /* 10px * 1024 = 10240px */
Parameters
The pow(base, number) function accepts two comma-separated values as its parameters.
base-
A calculation that resolves to a
<number>(), representing the base. number-
A calculation that resolves to a
<number>(), representing the exponent.
Return value
Returns a <number>() representing basenumber, that is, base raised to the power of number.
Examples
Scale headings by fixed ratio
The pow() function can be useful for strategies like CSS Modular Scale, which relates all the font-sizes on a page to each other by a fixed ratio.
HTML
<h1>Heading 1</h1> <h2>Heading 2</h2> <h3>Heading 3</h3> <h4>Heading 4</h4> <h5>Heading 5</h5> <h6>Heading 6</h6>
CSS
h1 {
font-size: calc(1rem * pow(1.5, 4));
}
h2 {
font-size: calc(1rem * pow(1.5, 3));
}
h3 {
font-size: calc(1rem * pow(1.5, 2));
}
h4 {
font-size: calc(1rem * pow(1.5, 1));
}
h5 {
font-size: calc(1rem * pow(1.5, 0));
}
h6 {
font-size: calc(1rem * pow(1.5, -1));
}