Header picks up child css but main body doesn’t

(I am an old programmer but a total noob to WP. See my profile for details.)

I am using a child of the Web-Developer theme on my local dev system. The header (header.php) seems to be picking up the child classes and displaying correctly, but the main content (page.php, et. al.) appears to be ignoring them. I’m assuming this is an enqueueing issue but can’t seem to figure out the right way to address it. I’ve tried “both” enqueueing methods mentioned on https://developer.www.ads-software.com/themes/advanced-topics/child-themes/, but to no avail.
Any suggestions are welcome.

• This topic was modified 3 years, 6 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Developing with WordPress topic