如何让Visual Studio和web标准联姻

 <style type="text/css">
    .cssTest{
    color:red;
    }
    .cssTest_FF{
    color:green;
    }
 </style>

<browsers>  
  <browser refID="IE">
    <controlAdapters>
     <adapter controlType="System.Web.UI.WebControls.Label" adapterType="LabelAdapter" />
    </controlAdapters>
  </browser>
  <browser refID="MozillaFirefox">
    <controlAdapters>
      <adapter controlType="System.Web.UI.WebControls.Label" adapterType="LabelAdapter_FF" />
    </controlAdapters>
  </browser>  
</browsers>

Imports System
Imports System.Web.UI
Imports System.Web.UI.WebControls

Public Class LabelAdapter_FF
    Inherits System.Web.UI.WebControls.Adapters.WebControlAdapter
    Protected Overloads ReadOnly Property Control() As Label
        Get
            Return DirectCast(MyBase.Control, Label)
        End Get
    End Property

    Protected Overrides Sub RenderBeginTag(ByVal writer As HtmlTextWriter)
        writer.WriteLine()
        writer.AddAttribute(HtmlTextWriterAttribute.Id, Control.ClientID)
        If Not String.IsNullOrEmpty(Control.ControlStyle.CssClass) Then
            writer.AddAttribute(HtmlTextWriterAttribute.Class, Control.ControlStyle.CssClass & "_FF") ‘用原来cssClass加上”_FF”这个样式class
        End If

        writer.AddStyleAttribute("font-weight", "bold") ’也可以直接样式属性

        writer.RenderBeginTag(HtmlTextWriterTag.Div) ‘这里换成div了，只是演示而已

        writer.Indent = writer.Indent + 1

    End Sub

    Protected Overrides Sub RenderEndTag(ByVal writer As HtmlTextWriter)

        writer.Indent = writer.Indent - 1

        writer.RenderEndTag()

        writer.WriteLine()

    End Sub

   Protected Overrides Sub RenderContents(ByVal writer As HtmlTextWriter)
        RenderContent(writer)
    End Sub

    Private Sub RenderContent(ByVal writer As HtmlTextWriter)
        writer.Write(Control.Text)
    End Sub
End Class