title: Htaccess for redirect of non-existing subpages
body: <p>For a website I just relaunched, I would like a htaccess redirect catching all non-existing subpages under <code>/blog/</code> to just point to <code>/blog/</code> and not a 404 (so <code>/blog/old-page/</code> would just redirect to <code>/blog/</code>). It's important however that the still existing subpages (such as <code>/blog/new-page/</code>) aren't redirected. It's also best if this can be in the root htaccess file (not in the subfolder). I feel like I've tried everything, but can't find a solution for this without making redirects for every single old subpage (there are &gt;100)!
  I hope someone can help.</p>