Height being defined

[jeffcorey]

Loving vue headroom. How is the height of Headroom being defined? We have the need for a sub nav but only on specific pages. We're running into the issue where the sub nav is hidden on first load of these pages, but then shows up when Headroom is activated when the user scrolls back up. We think it's caused by the height since it seems to be defined by JS. Any ideas how to adjust this on specific pages? Thanks!