Bob, what version of Kentico are you using? In version 8.* the entire control is wrapped with DebugLog div:
<%@ Control Language="C#" AutoEventWireup="true" Inherits="CMSAdminControls_Debug_OutputLog" CodeFile="OutputLog.ascx.cs" %>
<div class="DebugLog">
<cms:CMSPanel runat="server" EnableViewState="false" ID="pnlHeading" Visible="False" CssClass="LogInfo">
<cms:LocalizedLabel runat="server" ID="lblHeading" ResourceString="OutputLog.Info" EnableViewState="False" />
</cms:CMSPanel>
<cms:CMSPanel runat="server" EnableViewState="false" ID="pnlOutputInfo" CssClass="OutputInfo">
<cms:LocalizedLabel runat="server" ID="lblSizeCaption" AssociatedControlID="lblSize" ResourceString="OutputLog.Info" EnableViewState="false" />
<cms:LocalizedLabel runat="server" ID="lblSize" EnableViewState="false" />
</cms:CMSPanel>
<cms:CMSTextArea runat="server" ID="txtOutput" ReadOnly="True" Rows="10" EnableViewState="false" CssClass="Output" Wrap="true" />
</div>
So it's not clear what is that you're looking for.