Using mid might surfing global dark style with keysnail hok

I found this midnight-surfing-global-dark-style for firefox, but when
I used keysnail plugin's hok(like hit a hint), I couldn't see the link
color because this style overrode the link's bg color.
So I attached another little CSS as Stylish CSS.

This is the code:

div#ksHintContainer span {
  background-color: #87cefa !important
  color: #000000 !important
}

Now my firefox's look became much better than before!

※keysnail is addon that user can set favorite key style like Vim or
Emacs and you can choice or configure it and there are many plugin for
keysnail.