Theme skin for eachwebpart in webpartzone

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Hi.
So, in a webpartzone I put 3 webusercontrols like the following code:

<asp:WebPartZon e SkinID="wp1" ID="WebPartZone 1" Runat="server" Height="75px"
Width="382px" DragHighlightCo lor="244, 198, 96" HeaderText="Web Part"
Padding="5" PartChromeType= "TitleAndBorder ">
<PartTitleSty le BackColor="Ligh tSteelBlue"
ForeColor="Blac k"></PartTitleStyle>
<CloseVerb ImageUrl="~/images/icon_delete_ove r.gif"></CloseVerb>
<ZoneTemplate >
<uc1:WebUserCon trol1 Runat="server" ID="WebUserCont rol1_1" Title="UC1" />
<uc2:WebUserCon trol2 Runat="server" ID="WebUserCont rol2_1" Title="UC2" />
<uc3:WebUserCon trol3 Runat="server" ID="WebUserCont rol3_1" Title="UC3" />
</table>
</ZoneTemplate>
<RestoreVerb ImageUrl="~/images/icon_file_over. gif"></RestoreVerb>
<MinimizeVerb ImageUrl="~/images/icon_minimize.g if"></MinimizeVerb>
<PartStyle BorderColor="Si lver" BorderStyle="So lid" BorderWidth="1p x"
BackColor="Whit eSmoke" CellSpacing="0" CellPadding="0" ></PartStyle>
</asp:WebPartZone >

How can I do a skin for each webpart in my ski file?
Here my test.skin file:
<asp:Label runat="server" ForeColor="red" Font-Size="14pt"
Font-Names="Verdana" />
<asp:button runat="server" borderstyle="So lid" borderwidth="2p x"
bordercolor="Mi dnightBlue" backcolor="Ghos tWhite" Font-Size="10px"/>

Something like:
<asp:Webpart runat="server" ...

Thanks.

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