I'm just setting-up my first multisite - with all sites as sub-directories on the same domain.
On the main (published into root) site, the css is absent. It's ok on the other sites.
What might I have done wrong?
I can see that it's related to the .htaccess file (because if I remove the WP rewrite stuff it displays correctly, but the other sites vanish) but I don't know what the fix is.
UPDATE: it now appears to be ok. Perhaps it was caching or something, but having removed and then re-added the WP rewrite stuff to the .htaccess file things appear as they should.