Hello guys,
Its my live preview of my page : http://www.hamidoffice.com/kar/reza/
and also I need to make a shadow for bottom of the #greenmenu DIV which contains some images.

image of shadow : http://www.hamidoffice.com/kar/forum/footer-bg-div.jpg

css code for #greenmenu

#wrap #content #greenmenu{
float:left;
margin-top:70px;
margin-left:350px;
}

and html code ( child of content DIV)

<div id="greenmenu">
<img src="http://www.webmaster-talk.com/images/green0.png" />
<img src="http://www.webmaster-talk.com/images/green1.png" />
<img src="http://www.webmaster-talk.com/images/green2.png" />
<img src="http://www.webmaster-talk.com/images/green3.png" />
<img src="http://www.webmaster-talk.com/images/green4.png" />
<img src="http://www.webmaster-talk.com/images/green5.png" />
</div>

The shadow will need to be an image.

To put a left border on your div you need to add the following:

#wrap #content #greenmenu{
      float:left;
      margin-top:70px;
      margin-left:350px;
      border-left: 1px solid #fff;
}

I didn't want left border !! just i need to put shadow bottom of the div

Then change your thread subject.....

"how to make left border for Div?"

so sorry mymistake could you tell me about the shadow plz ?

As said above, the shadow will need to be an image, you will then need to place that image under the icons. Thus the icons will need to be transparent png's.

Well, you could use the box-shadow CSS3 property, but it won't be seen by IE users.