<number>

The <number> CSS data type represents a number, being either an integer or a number with a fractional component.

Syntax

The syntax of <number> extends the syntax of <integer>. A fractional value is represented by a . followed by one or more decimal digits, and may be appended to an integer. There is no unit associated with numbers.

Interpolation

When animated, values of the <number> CSS data type are interpolated as real, floating-point numbers. The speed of the interpolation is determined by the timing function associated with the animation.

Examples

Valid numbers

12          A raw <integer> is also a <number>.
4.01        Positive fraction
-456.8      Negative fraction
0.0         Zero
+0.0        Zero, with a leading +
-0.0        Zero, with a leading -
.60         Fractional number without a leading zero
10e3        Scientific notation
-3.4e-2     Complicated scientific notation

Invalid numbers

12.         Decimal points must be followed by at least one digit.
+-12.2      Only one leading +/- is allowed.
12.1.1      Only one decimal point is allowed.

Specifications

Specification
CSS Values and Units Module Level 3 (CSS Values 3) # numbers

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`number`	1	12	1	5	2	1	1	18	4	10.1	1	1.0
`scientific_notation`	43	12	29	11	30	10.1	43	43	29	30	10.3	4.0