Try this:

.linkshead

{

border: solid #880000;

border-width: 1px 10px 1px 10px;

width: auto;

text-align: center;

margin-bottom: 5px;

font-weight: bold;

background-color: #EEEEEE

}

And then in the body of your code:

<div class="linkshead">Test<div>

By setting the width to auto, it should default to 100% and be resizable.

Make sure you use the 'class' selector rather than the 'id' selector in this case. In order for a page to validate, it can't have multiple 'id' tags with the same name.

By the way, you have alot of extraneous <br/> tags in your code.