augroup AutomaticMarks
    autocmd!
    autocmd BufLeave *.css,*.scss normal! mC
    autocmd BufLeave *.html       normal! mH
    autocmd BufLeave *.js,*.ts    normal! mJ
    autocmd BufLeave *.vue        normal! mV
    autocmd BufLeave *.yml,*.yaml normal! mY
    autocmd BufLeave .env*        normal! mE
    autocmd BufLeave *.md         normal! mM
    " add your own!
augroup END