The sections in .editorconfig are filepath globs. They can be used to define config for certain files and directories:
root = true
[*]
indent_style = tab
indent_size = 2
insert_final_newline = true
# Match exact file package.json
[package.json]
indent_style = space
# Match .css files under test directory
[test/**/*.css]
insert_final_newline = false