new widget area with border

Hi all,

I'm not so good in programming and very bad in css...

I use WP 3.0 and Atahualpa 3.5.3

Here is my WP blog : www.leparloir.ch

I try to made my blog more like a magazine theme but really love
Atahualpa functionnality and so try to do what I want with it.

I like the default style of widget in the right side bar with grey
border around each widget.

I would like to put a widget area horizontally under the first post.
And I did it with "add new widget areas". Actually I put this code on
the begenning of the loop in "style and edit center column section" :

<?php if ( is_front_page() AND $bfa_ata['postcount'] == 2 ) { ?>

<?php bfa_widget_area('name=My widget
area&cells=3&align=2&width_1=200&width_2=200&width _3=200&width_4=200&before_widget=<div id="%1$s" class="header-widget %2$s">&after_widget=</div>');
?>

<?php } ?>

But no grey border...

So how can I make look my news widgets just like in my right bar ? I
guess I have to change some reference to css style but as I said I'm
not really good in css and php...

I hope that someone can help me.

Best regards

Charles