Aligning .aspx buttons - asp.net

Question

I have an update panel that contains a label, a dropDownList and two buttons:
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div id="dropDownList" style="position:relative;" runat="server">
<label>
Select New File: </label>
<div id="ddl" runat="server">
<asp:DropDownList runat="server" ID="ddlCaseFiles" DataSourceID="dsMyCaseFiles" DataTextField="Display"
DataValueField="FileID" OnPreRender="ddl_PreRender" Width="524px" OnSelectedIndexChanged="ddlCaseFiles_SelectedIndexChanged" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="ddlCaseFiles"
ToolTip="Casefile Required" InitialValue="-1" Text="*" Display="Dynamic" />
<ajaxToolkit:ListSearchExtender ID="ddlExtCaseFiles" runat="server" PromptCssClass="ListSearchExtenderPrompt"
TargetControlID="ddlCaseFiles" BehaviorID="ddlExtCaseFiles" Enabled="True" />
</div>
<br />
<asp:Button ID="btnMoveCaseFile" runat="server" Text=""
style="float:left;" onclick="btnMoveCaseFile_Click"/>
<asp:Button ID="btnCancel" runat="server" Text="Cancel"
style="float:right" onclick="btnCancel_Click"/>
<br />
</div>
<asp:Label runat="server" ID="lblStatus"></asp:Label>
</ContentTemplate>
I am trying to get my buttons to line up like this:(button at the beginning of the DropDownList and a button at the End)
I've tried float-absolute etc.

Answer 1

I figured it out. Seems as though you have to add in px after the number.....
<asp:Button ID="btnMoveCaseFile" runat="server" Text=""
style="position:absolute; float:left; margin-left:104px;" onclick="btnMoveCaseFile_Click"/>
<asp:Button ID="btnCancel" runat="server" Text="Cancel"
style="position:relative; float:right; margin-right:63px;"
since I had margin-right:63; instead of margin-right:63px;