<integer>

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The <integer> CSS data type is a special type of <number> that represents a positive or negative whole number. Integers can be used in numerous CSS properties and descriptors, such as the column-count, counter-increment, grid-column, grid-row, and z-index properties and the range descriptor.

Syntax

The <integer> data type consists of one or several decimal digits, 0 through 9 inclusive, optionally preceded by a single + or - sign. There is no unit associated with integers.

Note: There is no official range of valid <integer> values, and the specifications do not specify a range.

Interpolation

When animated, values of the <integer> data type are interpolated using discrete, whole steps. The calculation is done as if they were real, floating-point numbers; the discrete value is obtained using the floor function. The speed of the interpolation is determined by the easing function associated with the animation.

Examples

Valid integers

12          Positive integer (without a leading + sign)
+123        Positive integer (with a leading + sign)
-456        Negative integer
0           Zero
+0          Zero, with a leading +
-0          Zero, with a leading -

Invalid integers

12.0        This is a <number>, not an <integer>, though it represents an integer.
12.         Decimal points are not allowed.
+---12      Only one leading +/- is allowed.
ten         Letters are not allowed.
_5          Special characters are not allowed.
\35         Escaped Unicode characters are not allowed, even if they are an integer (here: 5).
\4E94       Non-arabic numerals are not allowed, even when escaped (here: the Japanese 5, 五).
3e4         Scientific notation is not allowed.

Specifications

Specification
CSS Values and Units Module Level 4
# integers

Browser compatibility

BCD tables only load in the browser

See also