Revision 56263 of frequency

  • Revision slug: CSS/frequency
  • Revision title: frequency
  • Revision id: 56263
  • Created:
  • Creator: teoli
  • Is current revision? No
  • Comment 11 words added, 40 words removed

Revision Content

{{ CSSRef() }}

Summary

In CSS, frequency values are used to control the pitch of a speaking voice. There are two possible values.

  • Hz: Hertz
  • kHz: kilohertz

The values are case-insensitive. 1,000 Hz = 1 kHz.

Specifications

Specification Status Comment
CSS Values and Units Level 3 {{ Spec2('CSS3 Values') }}  

This data type was initially introduced in CSS Level 2 for the now obsoleted aural media group, where it was used to define the pitch of the voice. This has been deprecated since then, but the <frequency> data type has been reintroduced in CSS3, though no CSS property is using it for the moment.

Browser compatibility

{{ CompatibilityTable() }}

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support no no no no no
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support no no no no no

Revision Source

<p>{{ CSSRef() }}</p>
<h2>Summary</h2>
<p>In CSS, frequency values are used to control the pitch of a speaking voice. There are two possible values.</p>
<ul> <li>Hz: Hertz</li> <li>kHz: kilohertz</li>
</ul>
<p>The values are case-insensitive. 1,000 Hz = 1 kHz.</p>
<h2 name="Specifications">Specifications</h2>
<table border="1" cellpadding="1" cellspacing="1" style="width: 1053px; border-style: solid; border-width: 1px; height: 75px; border-color: rgb(0,0,0);"> <thead> <tr style="background-color: rgb(255, 204, 255);"> <th scope="col">Specification</th> <th scope="col">Status</th> <th scope="col">Comment</th> </tr> </thead> <tbody> <tr> <td><a class="external" href="http://www.w3.org/TR/css3-values/#frequencies-the-ltfrequencygt-type-and-h" title="http://www.w3.org/TR/css3-values/#frequencies-the-ltfrequencygt-type-and-h">CSS Values and Units Level 3</a></td> <td>{{ Spec2('CSS3 Values') }}</td> <td> </td> </tr> </tbody>
</table>
<p>This data type was initially introduced in <a class=" external" href="http://www.w3.org/TR/CSS2/" title="http://www.w3.org/TR/CSS2/">CSS Level 2</a> for the now obsoleted <a href="/en/CSS/Aural" title="aural">aural</a> <a href="/en/CSS/@media#Media_groups" title="https://developer.mozilla.org/en/CSS/@media#Media_groups">media group</a>, where it was used to define the pitch of the voice. This has been deprecated since then, but the &lt;frequency&gt; data type has been reintroduced in CSS3, though no CSS property is using it for the moment.</p><h2>Browser compatibility</h2>
<p>{{ CompatibilityTable() }}</p>
<div id="compat-desktop"> <table class="compat-table"> <tbody> <tr> <th>Feature</th> <th>Chrome</th> <th>Firefox (Gecko)</th> <th>Internet Explorer</th> <th>Opera</th> <th>Safari</th> </tr> <tr> <td>Basic support</td> <td>no</td> <td>no</td> <td>no <a class=" external" href="http://msdn.microsoft.com/en-us/library/cc351024%28v=vs.85%29.aspx#values" title="http://msdn.microsoft.com/en-us/library/cc351024%28v=vs.85%29.aspx#values"></a></td> <td>no</td> <td>no</td> </tr> </tbody> </table>
</div>
<div id="compat-mobile"> <table class="compat-table"> <tbody> <tr> <th>Feature</th> <th>Android</th> <th>Firefox Mobile (Gecko)</th> <th>IE Mobile</th> <th>Opera Mobile</th> <th>Safari Mobile</th> </tr> <tr> <td>Basic support</td> <td>no</td> <td>no</td> <td>no</td> <td>no</td> <td>no</td> </tr> </tbody> </table>
</div>
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