Example
An HTML form with an input field with a specified legal number intervals:
<form action="demo_form.asp">
<input type="number" name="points" step="3">
<input type="submit">
</form>
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Definition and Usage
The step attribute specifies the legal number intervals for an <input> element.
Example: if step="3", legal numbers could be -3, 0, 3, 6, etc.
Tip: The step attribute can be used together with the max and min attributes to create a range of legal values.
Note: The step attribute works with the following input types: number, range, date, datetime, datetime-local, month, time and week.
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| step | 6.0 | 10.0 | 16.0 | 5.0 | 10.6 |
Differences Between HTML 4.01 and HTML5
The step attribute is new in HTML5.
Syntax
<input step="number">
Attribute Values
| Value | Description |
|---|---|
| number | Specifies the legal number intervals for the input field. Default is 1 |