neovim already includes the floating window feature in the master, which is quite useful to improve the user experience in many ways, e.g., open the fzf in a centered floating win without disturbing the window layout. space-vim already embrace this feature in the fzf layer, I highly recommend you to update space-vim and neovim to try it.

To install the HEAD version of neovim via brew:
$ brew install neovim --HEAD
neovim already includes the floating window feature in the master, which is quite useful to improve the user experience in many ways, e.g., open the fzf in a centered floating win without disturbing the window layout. space-vim already embrace this feature in the fzf layer, I highly recommend you to update space-vim and neovim to try it.
To install the HEAD version of neovim via brew: