[jQuery] Round corner

Hi Members , <div>
</div><div>How to make the round corners ,</div><div>
</div><div><div id='test'></div><div>
</div><div> welcome to jquery groups , i want round corner for this DIV
</div>
<div>
</div><div></div>
</div><div>
</div><div>Thanks in advance
</div><div>
</div><div>Bharani </div>