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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 <meta> http-equiv Attribute
Example
Refresh document every 30 seconds:
<head>
<meta http-equiv="refresh" content="30">
</head>
<meta http-equiv="refresh" content="30">
</head>
Try it yourself »
Browser Support
The http-equiv attribute is supported in all major browsers.
Definition and Usage
The http-equiv attribute provides an HTTP header for the information/value of the content attribute.
The http-equiv attribute can be used to simulate an HTTP response header.
Differences Between HTML 4.01 and HTML5
Using http-equiv is no longer the only way to specify the character set of an HTML document:
- HTML 4.01: <meta http-equiv="content-type" content="text/html; charset=UTF-8">
- HTML5: <meta charset="UTF-8">
Syntax
<meta http-equiv="content-type|default-style|refresh">
Attribute Values
| Value | Description |
|---|---|
| content-type | Specifies the character encoding for the document. Example: <meta http-equiv="content-type" content="text/html; charset=UTF-8"> |
| default-style | Specified the preferred style sheet to use. Example: <meta http-equiv="default-style" content="id_of_link_element"> |
| refresh | Defines a time interval for the document to refresh itself.
Example: <meta http-equiv="refresh" content="300"> Note: The value "refresh" should be used carefully, as it takes the control of a page away from the user. Using "refresh" will cause a failure in W3C's Web Content Accessibility Guidelines. |
HTML <meta> tag
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