animate width of a box towards left
<p>I have a div box</p>

<pre><code>&lt;div style="width: 400px; height: 400px; position: absolute; left: 350px; top: 350px; background-color: #cdcdcd;"&gt;&lt;/div&gt;
</code></pre>

<p>i can easily animate its width towards right side (left edge will be on fixed position).<br>
How to fix the right edge of the box and animate its width towards left???<br>
i.e. box will expand towards left side.</p>
