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Editorial Team
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Asked: 2026-05-16T07:00:57+00:00

I have this code, and it renders this HTML. How can I apply CSS

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I have this code, and it renders this HTML. How can I apply CSS to my control if they are named ctrctrctr-00000 or something else like that that is only useful to the VIEWSTATE?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>

</title><link href="../global.css" rel="stylesheet" type="text/css" />
Informacion General: Paises
</head>
<body>
    <form name="aspnetForm" method="post" action="Pais.aspx" id="aspnetForm">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTUyMDk1NTY2MGRkwAKu2OIV85kXfcUcAefBBNmSuRY=" />
</div>

<div>

    <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAwLSha7NBAKqw7ARAvjQlaIKhJ2HMftmmOoxe/+aE4sG3D32QtA=" />
</div>
    <div>

    <input name="ctl00$ContentPlaceHolder1$txtPais" type="text" id="ctl00_ContentPlaceHolder1_txtPais" />
    <input type="submit" name="ctl00$ContentPlaceHolder1$btnSubmit" value="Button" id="ctl00_ContentPlaceHolder1_btnSubmit" />

    </div>
    </form>
</body>
</html>



<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Frontend._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>    
        <h1>Prueba de Escritorio</h1>        
        <asp:TextBox ID="txtPais" runat="server"></asp:TextBox>
        <asp:Button ID="btnSubmit" runat="server" Text="Guardar" onclick="btnSubmit_Click" />    
    </div>
    </form>
</body>
</html>

How can I use a CSS selector to target ALL textboxes on the page regardless of name?

Thank you.

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1 Answer

  1. Editorial Team

    You can give it a CSS class, like this:

    <asp:TextBox ID="txtPais" runat="server" CssClass="textbox" />

    Then just use add what you need in your CSS:

    .textbox { color: red; }

    The CssClass property doesn’t get mangled like the ID and name attributes.

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