如何为表中的所有控件赋予特定样式

I have a table like this

我有一张这样的桌子

<table class="row col-lg-offset-1 thumbnail">
    <tr>
        <td class="col-lg-2">First Name</td>
        <td class="col-lg-6">
            <asp:TextBox ID="TextBox1" CssClass="form-control" runat="server"></asp:TextBox>
        </td>
    </tr>
    <tr>
        <td class="col-lg-2">Last Name</td>
        <td class="col-lg-6">
            <asp:TextBox ID="TextBox2" CssClass="form-control" runat="server"></asp:TextBox>
        </td>
    </tr>
    <tr>
        <td class="col-lg-2">E-Mail</td>
        <td class="col-lg-6">
            <asp:TextBox ID="TextBox5" CssClass="form-control form-group" runat="server"></asp:TextBox>
        </td>
    </tr>
    <tr>
        <td colspan="2" class="text-center">
            <asp:Button ID="Button1" CssClass="btn btn-warning" Text="Submit" OnClientClick="return ValidateForm();" OnClick="btnSubmit_OnClick" runat="server" />
        </td>
    </tr>
</table>
<table c