when vim+emmet writes css files, bgc can be extended to background-color.

enter bgc in sublime text 3

my vim is configured with emmet+ultisnip,. If only I could pop up this completion window after entering bgc,.

excuse me, have you done anything?

sublime text 3 is too expensive, 80usd. After using it for a long time for free, you always pop up, but you still want to use the free vim.