Show hide div inside GridView based on column value in ASP.Net

hi

I used gridview that define div on ItemTemplate below is code:

<asp:TemplateField ItemStyle-Width="101px" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle">
     <ItemTemplate>
        <div id="ersal1">   
            <asp:HyperLink ID="HyperLink1" runat="server" CssClass="LBsefSe" NavigateUrl='<%# "ViewSendOrder.aspx?&PeygiriCode=" + Eval("PeygiriCode") %>'>ارسال شده</asp:HyperLink>
        </div>
     </ItemTemplate>
</asp:TemplateField>

and css:

#ersal1 
{
   float:right;
   width:104px;
   height:46px;
   background-color:#9fa490;
}

see below image:

I show <div id="ersal1"> with red arrow and as you see here is gap between <div> and TemplateField that I show with green arrow how I can define Div that fill columns without any gap (white space)

Best regards

neda