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<!--> <!DOCTYPE> <a> <abbr> <acronym> <address> <applet> <area> <article> <aside> <audio> <b> <base> <basefont> <bdi> <bdo> <big> <blockquote> <body> <br> <button> <canvas> <caption> <center> <cite> <code> <col> <colgroup> <command> <datalist> <dd> <del> <details> <dfn> <dialog> <dir> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <font> <footer> <form> <frame> <frameset> <head> <header> <hgroup> <h1> - <h6> <hr> <html> <i> <iframe> <img> <input> <ins> <kbd> <keygen> <label> <legend> <li> <link> <map> <mark> <menu> <meta> <meter> <nav> <noframes> <noscript> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <rp> <rt> <ruby> <s> <samp> <script> <section> <select> <small> <source> <span> <strike> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <textarea> <tfoot> <th> <thead> <time> <title> <tr> <track> <tt> <u> <ul> <var> <video> <wbr>HTML <input> step Attribute
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>
<input type="number" name="points" step="3">
<input type="submit">
</form>
Try it yourself »
Browser Support
The step attribute is supported in Internet Explorer 10, Opera, Chrome, and Safari.
Note: The step attribute of the <input> tag is not supported in Internet Explorer 9 and earlier versions, or in Firefox.
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.
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 |
HTML <input> tag
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