Page formatting (css) is broken on https://wiki.dlang.org pages whereas it is okay on http://wiki.dlang.org pages.
Can you be a bit more specific as to what exactly is broken? How does it behave currently, and what do you expect it to be?
Basically the secure pages look like flat html without CSS styling. For example, the left sidebar item are down at the bottom in a flat list. I just noticed the green lock with a grey warning triangle in the URL bar indicating mixed content blocking. If I temporarily disable the security checks the pages look fine but the symbol is a greyed out lock with a red stripe, indicating the site is not secure.
*** Issue 15725 has been marked as a duplicate of this issue. ***
This has been fixed for a while.