I'm assuming that you created a Master Page, then inserted a Breadcrumbs Placeholder into that. So your editor would look like this:
And if you double-click the placeholder you should see this dialog allowing you to configure the Breadcrumbs.
That dialog is what I'm referring to. Seems that if I choose the font and font size there, RoboHelp fully respects what I've selected and it ends up looking as I hoped in the CHM file.
Cheers... Rick 
Many thanks, people. With your suggestions, I've managed to resolve this.
Here's what I did:
(being thorough for the sake of anyone dropping in)
- Make a backup of the default.css.
- Open default.css in an external text editor.
- Erase all the style definitions from it.
Then, in RoboHelp;
- Open the Master Page, and delete the breadcrumbs placeholder from within in.
- With the Master Page still open, add a new breadcrumbs placeholder, ensuring that the Use Style from Topic check box is ticked. Ignore all other settings.
- Click the breadcrumbs placeholder, so it's selected. Then, locate the "breadcrumbs" style in the Style and Formatting pod, right-click it, and select Edit. Define the style you want for your breadcrumbs. I'm not sure if this step was necessary.
- Switch to HTML view (of the Master Page) and manually modify the breadcrumb's style definition (I needed to change the font type and size for my project). I'm not sure if this step was necessary either.
- Within the Project Set-up pod, locate and right-click the Master Page in question, and select Properties.
- Within the Properties window, select the Appearance tab, and ensure that the default.css is the selected style sheet.
- Open the Topic List pod, select all topics, right-click the list, and click Properties.
- Within the Properties window, select the Appearance tab, and ensure that None is selected. Click Apply. It may take a moment for RH to apply this setting to all your topics. This ensures that none of the topics are directly influenced by a style sheet.
- Within the Properties window, select the General tab, and ensure that the Master Page drop-down list displays the master page you edited earlier. Click Apply. It may take a moment for RH to apply this setting to all your topics. This ensures that every topic is based on the Master Page, and hence, by proxy, any style sheet that the Master Page is associated with.
- Within the Properties window, select the Appearance tab again. Notice that the selected style sheet now reads default.css*, despite having just specified that we wanted no style sheet selected. The * here indicates that the default.css style is being applied, but indirectly, via the Master Page we applied to all the topics.
- Click OK on the Topic Properties window. Again, it may take a moment for RH to apply this to all your topics. Note that because I deleted all the style definitions from my default.css, each topic in my project (and the Master Page itself) now displays the default styling of RH i.e. it has no other style definitions to work with - it's reading an empty style guide.
Now to build the styles...
- Open default.css in an external text editor.
- Open the backup default.css you made at the start.
- Copy from the backup to the default.css each style you want to use in your project. I copied over all the styles I wanted to use, and ignored all the others (styles I wasn't using in this project). As you copy the styles over, save the default.css, and flick back over to RH, and you should see your saved style definition(s) being added to the Style and Formatting pod.
Then, I had to do a little manual tweaking of the breadcrumbs style definitions in the default.css, using the text editor. For my needs, my breadcrumbs work, based on these definitions:
a.breadcrumbs:link {
font-size: 8pt;
color: #808080;
}
a.breadcrumbs:visited {
font-size: 8pt;
color: #808080;
}
a.breadcrumbs:focus {
font-size: 8pt;
color: #808080;
}
a.breadcrumbs:hover {
font-size: 8pt;
}
a.breadcrumbs:active {
font-size: 8pt;
color: #808080;
}
p.breadcrumbs {
font-size: 8pt;
}
Thanks again, people.
Have I missed anything?
...sorry, am running out the door.
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