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Revision 56262 of frequency

  • Revision slug: CSS/frequency
  • Revision title: frequency
  • Revision id: 56262
  • Created:
  • Creator: teoli
  • Is current revision? No
  • Comment 60 words added

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 {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }}
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }} {{ CompatUnknown() }}

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>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</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>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> <td>{{ CompatUnknown() }}</td> </tr> </tbody>
</table>
</div>
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