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<h1>CSS background-position Property</h1>
<hr />
<a href="css_reference.asp"><img class="navup" src="../images/up.gif" alt="CSS Reference" border="0" /> Complete CSS Reference</a>
<hr />
<h2>Definition</h2>
<p>The background-position property sets the starting position of a background image.</p>
<p><b>Inherited:</b> No</p>
<p><b>Note:</b> For this to work in Mozilla, the background-attachment property must be set to "fixed".</p>
<hr />
<h2><b>JavaScript Syntax</b></h2>
<p>CSS properties can also be dynamically changed with a JavaScript.</p>
<p><b>Scripting Syntax:</b> <i>object</i>.style.backgroundPosition="bottom
center"</p>
<p>In our HTML DOM tutorial you can find more details about the
<a href="../htmldom/prop_style_backgroundposition.asp">backgroundPosition property</a>.</p>
<p>In our HTML DOM tutorial you can also find a full
<a href="../htmldom/dom_obj_style.asp">Style Object Reference</a>.</p>
<hr />
<h2>Example</h2>
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<p>body<br />
{ <br />
background-image: url(stars.gif);<br />
background-repeat: no-repeat;<br>
background-attachment:fixed;<br />
background-position: top left<br />
}</p>
<p>body<br />
{ <br />
background-image: url(stars.gif);<br />
background-repeat: no-repeat;<br>
background-attachment:fixed;<br />
background-position: 0% 0%<br />
}</p>
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<h2>Possible Values</h2>
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<tr>
<th align="left" valign="top" width="20%">Value</th>
<th align="left" valign="top" width="70%">Description</th>
</tr>
<tr>
<td valign="top">top left<br />
top center<br />
top right<br />
center left<br />
center center<br />
center right<br />
bottom left<br />
bottom center<br />
bottom right</td>
<td valign="top">If you only specify one keyword, the second value will be
"center".<p>Default value: 0% 0%</p></td>
</tr>
<tr>
<td valign="top"><i>x% y%</i></td>
<td valign="top">The first value is the horizontal position and the second
value is the vertical. The top left corner is 0% 0%.
The right bottom corner is 100% 100%. If you only specify one
value, the other value will be 50%.</td>
</tr>
<tr>
<td valign="top"><i>xpos ypos</i></td>
<td valign="top">The first value is the horizontal position and the second
value is the vertical. The top left corner is 0 0. Units can be pixels
(0px 0px) or any other CSS units. If you only specify one
value, the other value will be 50%. You can mix % and positions.</td>
</tr>
</table>
<br />
<hr />
<h2>Try-It-Yourself Demos</h2>
<p><a target="_blank" href="tryit.asp@filename=trycss_background-position">How to place the
background image</a><br />
This example demonstrates how to place the image on the page.</p>
<p>
<a target="_blank" href="tryit.asp@filename=trycss_background-position_percent">
How to position a background image using %</a><br />
This example demonstrates how to position an image on the page using percent.</p>
<p>
<a target="_blank" href="tryit.asp@filename=trycss_background-position_pixel">
How to position a background image using pixels</a><br />
This example demonstrates how to position an image on the page using pixels.</p>
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