--- a/.vimrc	Tue Jan 27 21:35:01 2015 +0800
+++ b/.vimrc	Tue Jan 27 21:52:16 2015 +0800
@@ -63,6 +63,8 @@
 " bubble lines
 nnoremap <C-Up> :move .-2<CR>
 nnoremap <C-Down> :move .+1<CR>
+vnoremap <C-Up> :move '<-2<CR>gv
+vnoremap <C-Down> :move '>+1<CR>gv
 imap <C-Up> <C-O><C-Up>
 imap <C-Down> <C-O><C-Down>