highlight cline cterm=none ctermbg=blue ctermfg=white
au! Cursorhold * :exe 'match cline /\%' . line(".") . 'l.*'
set ut=0
au! WinLeave * exe 'match none'
inoremap <silent> <up> <up><esc>:exe 'match cline /\%' . line(".") . 'l.*'<cr>i
inoremap <silent> <down> <down><esc>:exe 'match cline /\%' . line(".") . 'l.*'<cr>i
inoremap <silent> <pageup> <pageup><esc>:exe 'match cline /\%' . line(".") . 'l.*'<cr>i
inoremap <silent> <pagedown> <pagedown><esc>:exe 'match cline /\%' . line(".") . 'l.*'<cr>hi