How to add whitespace between CheckBoxes in ASP.NET

I have problem adding spaces between CheckBoxes and text next to them. I want to have them intended a little bit, not next to each other without some space. I have CheckBoxList like:

<asp:CheckBoxList id="checkboxlist1" 
       AutoPostBack="True"
       TextAlign="Right"
       OnSelectedIndexChanged="Check_Clicked"
       runat="server">
       ...
</asp:CheckBoxList>

I was reading docs, but nothing works.