Product list changed to 3 per row; add to cart button issue

[erikl]

Hi,

I modified my product-list to show 3 products / row with the code I found at freeprestashopmodules.
My problem is when I try to put the add to cart code back where it was in the product list tpl, it get's messed up and the cart goes to the left side of the page and also some products. Any idea why that is?
Here are the codes I use:

/* product-list.tpl */
ul#product_list{ margin-top:2em; list-style-type:none; }
ul#product_list li {
background: #FFF;
padding: 4px;
height:220px;
clear:both;
margin-bottom:0.3em;
float: left;
width: 29%;
height: 255px;
margin-right: 8px;
clear: none;
margin-left:4px;
margin-top:2px;
}
ul#product_list li a {
text-decoration:none;
color:#000;
}
ul#product_list a.product_img_link{
border: solid 1px #d0d3d8;
float:left;
margin-right:0.6em;
margin-left:15px;
margin-top:30px;
}
ul#product_list li h3{ margin:0.4em 0; width:160px;padding-bottom:2px;height:10px; text-align: center;}
ul#product_list li .new{
background:transparent url(../img/flag_new_bg.jpg) repeat-x scroll 0%;
border:1px solid #488C40;
color:white;
font-size:0.6em;
font-weight:bold;
margin:0pt 1em 0pt 0pt;
padding:0pt 0.4em;
text-transform:;
vertical-align:0.3em;
}
ul#product_list li p.product_desc{ font-size:0.92em; }
ul#product_list li div.center_block{
float:left;
width:100%;
}
ul#product_list li div.right_block{
float:left;
text-align:center;
margin-left:2em;
margin-top:0.5em;
display:inline;
}
ul#product_list li .discount{
color:#da0f00;
text-transform:;
font-weight:bold;
display: block;
}
ul#product_list li .on_sale{
color:#da0f00;
text-transform:;
font-weight:bold;
display: block;
}
ul#product_list li .reduction {
display: block;
margin-bottom: 0.3em;
}
ul#product_list li .price{
display: block;
font-size: 120%;
margin-bottom: 0.2em;
}
ul#product_list li span.availability{
color:#000;
font-size:0.9em;
}
ul#product_list li a.button{ margin-top:0.5em; }

and attached product-list.tpl
http://www.sendspace.com/file/iczrs8

[robkwal]

Could you post a link to the website?

[erikl]

Could you post a link to the website?

Hi! It's not published yet, but if you pm me your ip I'll add you to the exceptions if you're kind enough to take a look.
Thanks

[guest*]

How did you solved it ?