It seems I can't add a CssClass attribute in the tag of a Content placeholder on my Master Page, eg:

                    <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server" CssClass="myclass">
                    </asp:ContentPlaceHolder>

Why is this the case?

I simply want to keep the style of my content pages abstracted from my master page.  Since adding a css file to a page also applies the styles contained therein to the related Master page, this seemed like the only alternative.
Any ideas what I can do to solve my problem?
 
Thanks,
kreid
 

the ContentPlaceHolder itself does not actually render so adding a cssclass (if allowed) wouldnt have any effect.
try it like this instead:

<div Class="myclass">
    <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
    </asp:ContentPlaceHolder>
</div>

your page content will appear directly inside of the div

Ok, I understand.

This won't affect the rendering of the stuff inside the ContentPlaceHolder though, will it? It would be ideal if I used the above div, then inside the placeholder I could just specify <h1>Heading</h1> - rendering the heading with the correct style applied (e.g.: myclass.h1).  I do not think this is possible though, so what is the best way to separate the styles of the masterpage a contentplaceholder page?

The only idea I have is to link to the stylesheets in MasterPage.master and specify classes or ids, e.g.:

.cmaster {font-family: Arial; font-size: 24pt; color: black; }

.content {font-family: Verdana; font-size: 14pt; color: blue; }

then in the page:

<h1 class="content">Foo</h1>

etc, etc... 

 Anyone got a better way?

 
Thanks,

kreid
 

kreid:

This won't affect the rendering of the stuff inside the ContentPlaceHolder though, will it?

it certainly could...

kreid:

It would be ideal if I used the above div, then inside the placeholder I could just specify <h1>Heading</h1> - rendering the heading with the correct style applied (e.g.: myclass.h1). 

it would be "myclass h1" which would affect any h1 tag found inside the class myclass. when you use the dot (myclass.h1) you are affecting an h1 contained directly insie the class myclass.