style for asp.net Gridview

This is part of css files that contains style description:

 
   .mGrid {
        width: 100%;
        background-color: #fff;
        margin: 5px 0 10px 0;
        border: solid 1px #525252;
        border-collapse:collapse;
    }
    .mGrid td {
        padding: 2px;
        border: solid 1px #c1c1c1;
        color: #717171;
    }
    .mGrid th {
        padding: 4px 2px;
        color: #fff;
        background: #424242 url(grd_head.png) repeat-x top;
        border-left: solid 1px #525252;
        font-size: 0.9em;
    }
    .mGrid .alt { background: #fcfcfc url(grd_alt.png) repeat-x top; }
    .mGrid .pgr { background: #424242 url(grd_pgr.png) repeat-x top; }
    .mGrid .pgr table { margin: 5px 0; }
    .mGrid .pgr td {
        border-width: 0;
        padding: 0 6px;
        border-left: solid 1px #666;
        font-weight: bold;
        color: #fff;
        line-height: 12px;
     }
    .mGrid .pgr a { color: #666; text-decoration: none; }
    .mGrid .pgrD A:link    {color:#0466c1;}
    .mGrid .pgr A:visited {color:#0466c1;}
    .mGrid .pgr A:hover   {color:#0466c1;}
    .mGrid .pgr A:active  {color:#0466c1;}
    .mGrid .pgr a:hover { color: #000; text-decoration: none; }

images must be placed within style file
grd_alt.png
grd_head.png
grd_pgr.png

In grid this style can by defined as follows:

 
<asp:GridView ID=gv runat=server BorderWidth="0" CellPadding=0 CellSpacing=0 Width="100%" CssClass="mGrid"
AllowPaging=false AllowSorting=false AutoGenerateColumns="False" SkinID=gvSkinMergePeople>
<Columns>
 <asp:TemplateField HeaderText="dealer#" >
	 <ItemTemplate>
	    <a href='Edit.aspx?id=<%#Eval("Id") %>'> <%#Eval("dealer_") %></a>
	 </ItemTemplate>


 </asp:TemplateField>
    <asp:BoundField HeaderText="Client Name" DataField="dealer_name" />
    <asp:BoundField HeaderText="Group" DataField="group" />
    <asp:BoundField HeaderText="industry" DataField="industry" />
    <asp:BoundField HeaderText="status" DataField="dealer_status" />
    <asp:BoundField HeaderText="service begins" DataField="service_begins" DataFormatString="{0:mm/dd/yyyy}" />
    <asp:BoundField HeaderText="CommissionType" DataField="RevenueSegmentValue" />
    <asp:BoundField HeaderText="BudRank" DataField="BudRank" />
    <asp:BoundField HeaderText="ForecastRank" DataField="ForecastRank" />
</Columns>
<EmptyDataTemplate>
    <table cellpadding=0 cellspacing=0 border=0 width=100% height=100%>
	<tr>
	    <td align=center height="40">
		<asp:Label ID=lblEmptyMessage runat=server Text="No Records Found" CssClass="NewPlainText"></asp:Label>
	    </td>
	</tr>
    </table>
</EmptyDataTemplate>
</asp:GridView>