asp controls acting strange

Question

Hi! Im making a site on wich i need to make a search. So i made it like this (check picture) as you can see the asp dropdown lists arent in line with the div (blue box) and they have no css on them... All this happens in FF, in internet explorer the textbox is lowered and the dropdowns are at the correct height... What could be wrong?

http://img688.imageshack.us/img688/1112/cssuf.png

EDIT:

<div id="SearchBarAlign">
<asp:TextBox ID="txtSearchBar" runat="server" BorderColor="#C9D200" BorderStyle="Solid" Height="32px" Width="260px"></asp:TextBox>
   &nbsp;&nbsp;<asp:DropDownList ID="ddlCategory" BorderColor="#C9D200" BorderStyle="Solid" runat="server" Height="32px" Width="180px"></asp:DropDownList>
    &nbsp;&nbsp;<asp:DropDownList ID="ddlCounty" BorderColor="#C9D200" BorderStyle="Solid" runat="server" Height="32px" Width="180px"></asp:DropDownList>
    <div class="SearchBarAlignButton">
    &nbsp;&nbsp;<asp:ImageButton ID="imgSearch" ImageUrl="~/Images/Siteimages/sokknapp.png" runat="server"/>
</div>
</div>

CSS:

SearchBarAlign

{ margin-left:75px; margin-top:220px; height:45px; position:absolute; width:700px; }

Help appreciated!