When making output in Flare, the application automatically creates a navigation (nav) bar. This could sometimes be unnecessary or undesirable, considering the output is relatively small, the header of the navbar contains images and headers you simply don’t want in your output or that you don’t want your users to navigate through different topics. You can’t just remove a navbar from a stylesheet, instead you have to make a new stylesheet.

This is how you can remove the navbar in Flare from topics in your output.

1. Create a separate stylesheet for those topics where you don’t want the navbar to show (copy from the main stylesheet).
2. Open this new stylesheet with a text editor and add the styles as in (*) below.
3. Open the Properties dialog for the desired topics and apply this new stylesheet to just those topics.

This removes the top navigation bar, breadcrumbs, and print/expand buttons from the topic when the final output is generated.

(*)

nav.tab-bar
{
display:none !important;
}
.MCBreadcrumbsBox_0
{
display:none !important;
}
.sideContent
{
display:none !important;
} 

(Source: https://forums.madcapsoftware.com/viewtopic.php?f=9&t=21642)