How to change Color of CommandField in ASP.Net GridView

hi 

I used commandfield in gridview that users can update their data in gridview Below is code:

<asp:CommandField EditText = "EDIT"  UpdateText = "Update" CancelText = "Cancel"  ShowEditButton="True" ItemStyle-Width="45px" ButtonType="Link" ControlStyle-CssClass="linkGVE"  />

and css:

            .linkGVE
   {
     text-decoration:none;
       color:#02ca02;
         text-align:center;  }

here this css if for all EditText and UpdateText and CancelText 

But I want EditText has blue color  and CancelText has red color how I can do it?

Best Regards

Neda