Consider the image below. Here are the issues:

• The menu appears far to the right, rather than below the menu title. Fixed a while a go this seems.
• The language dropdown needs left margin or padding
  • Fix for regular sidebar - Fix language-drop style when in left nav #2183
  • Fix for foldable sidebar. For a screenshot see comment further below. - Fix left-padding of language menu in a foldable sidebar #2339
• Text color:
  • Menu title text color seems off - Fix language-drop style when in left nav #2183
  • Menu entry text doesn't appear to be of the right color - Fix language-drop style when in left nav #2183
• Language dropdown menu hidden in narrow displays #2035

Related:

• Language menu in side nav: paths default to locale homepage not translations of current page #2131